echolocation
echolocation
1. Some of the larger insect-eating bats produce echolocation sounds audible to humans, but for the most part bats seem to fly silently through the night.
一些体形较大的、以昆虫为食的蝙蝠发出的定位声音可以为人们所听到，但从很大程度来说，蝙蝠似乎是静静地在夜空中飞行的。
2. Some bats have specialized structures for emitting echolocation calls.
一些蝙蝠已经把用于发出回声定位叫声的结构专门化了。
3. In general, echolocation calls are characterized by their frequency, intensity in decibels (dB), and duration in milliseconds (ms).
一般来说,用于回声定位的叫声是用它们的频率、强度(分贝)以及持续时间(毫秒)来表示特征的。
4. In general,echolocation calls are characterized by their frequency,intensity in decibels (dB),and duration in milliseconds (ms) .
一般来说，用于回声定位的叫声是用它们的频率、强度(分贝)以及持续时间(毫秒)来表示特征的。
5. 17. In general, echolocation calls are characterized by their frequency, intensity in decibels (dB), and duration in milliseconds (ms) .
一般来说，用于回声定位的叫声是用它们的频率、强度（分贝）以及持续时间（毫秒）来表示特征的。
6. Characteristics of Echolocation Calls and Summer Diet of Three Sympatric Insectivorous Bats Species
三种共栖蝙蝠的回声定位信号特征及其夏季食性的比较
7. Special topics: echolocation in the bat and dolphin
专题:蝙蝠与海豚的回声定位
8. Comparison of the Echolocation Signals in Two Species of Flat-headed Bats at Flying
两种扁颅蝠回声定位叫声的比较
9. Echolocation, the active use of sonar along with special morphological and physiological adaptations, allows bats to "see" the world with sound.
主动应用声纳并与特殊形态学和生理学调节结合在一起的回声定位，使蝙蝠能用声音来“看”这个世界。
10. Sexual differences in morphology and echolocation calls in five Chinese bat species
五种蝙蝠形态与回声定位叫声的性别差异
11. "Low-power ultrasonic waves do not cause distortions; the uses include sonar, structure testing, and medical imaging and diagnosis. Some animals, including Bats, employ ultrasonic echolocation for navigation"
低功率超音波用于声纳系统以进行水下探测和导航,在医学上,用来产生人体内部组织的影像。
12. Identification of bat species inhabiting the same area by analyzing the echolocation call
依据回声定位声波参数判别同域栖息的蝙蝠种类
13. in terms of pitch,bats produce echolocation calls with both constant frequencies and varying frequencies that are frequently modulated
关于音调，蝙蝠用恒定频率和频繁调整的变化频率发出回声定位的叫声
14. In terms of pitch, bats produce echolocation calls with both constant frequencies and varying frequencies that are frequently modulated.
关于音调，蝙蝠用恒定频率和频繁调整的变化频率发出回声定位的叫声。
15. Keywords Outer hair cells;Stereocilia;Cochlea;Echolocation;Bat;
关键词外毛细胞;静纤毛;耳蜗;回声定位;蝙蝠;
16. And refind the confidence of life.The principle is to use of echolocation and infrared detector ,with the software inside.
其原理是利用回声定位原理和红外线探测仪，跟里面的信息转换软件相结合而形成的。
17. "Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echolocation in bats to see a case in which the voice plays a strictly utilitarian role. "
动物发出的声音并不是都能当作语言,因此我们只好求助于蝙蝠回声定位的这种非凡的发现,探究一下语音在何种情况下起着绝对有用的作用。
18. Piscivorous Habit and Echolocation Sound of Myotis ricketti at Fangshan, Beijing
北京房山大足鼠耳蝠食鱼性及回声定位信号
19. 9.Even so, we can hear echolocation clicks from some bats, such as the spotted bats.
即使这样，我们也能听到一些蝙蝠发出的回声定位声，比如斑纹蝙蝠。
20. The Echolocation Comparison and the Differentiation of Ecology Niche of Five Species Bats Live in One Cave
同一山洞中五种蝙蝠的回声定位比较及生态位的分化
21. Differences in diet and echolocation in four sympatric bat species and their respective ecological niches
同地共栖四种蝙蝠食性和回声定位信号的差异及其生态位分化
22. echolocation, echolocalization
回声定位
23. This echolocation, where high frequency sounds bounce off objects giving the bat a picture of the world around it, is purely functional.
回声定位其实属于工作用语，蝙蝠利用从物体反弹回来的超声波，对周围世界有个大致了解。
24. Echolocation calls
回声定位叫声
25. echolocation call
回声定位声波
26. Echolocation sound waves, morphological features and foraging strategies in Hipposideros pratti
回声定位声波、形态及捕食策略
27. Echolocation is a highly technical and interesting tactic.
回声定位是一项具有高度技术性和趣味性的手段。
28. Echolocation and Acoustic Communication in Bats
回声定位蝙蝠及其声通讯
29. half rely on echolocation to detect obstacles in flight, find their way into roosts, and forage for food.
在约900种蝙蝠中，一半以上依靠回一定位法探测飞行中的障碍物，寻找回巢的路线和用作食物的饲料。
30. H. armiger also increased differences in minimum frequency and bandwidth, and emitted echolocation calls with higher minimum frequency and wider bandwidth when they flew in pairs.
在调频型讯号的部份，成对飞行的个体则会增加最低频率或频宽的差异，同时使用较高的最低频率及较宽的频宽。
31. Based on the bat s echolocation theory, a new model of navigation system for the blind was designed using microprocessor and ultrasonic devices.
基于蝙蝠回声定位的原理,本文设计了一种新的超声波盲人导航,对盲人前面道路上的障碍物进行距离和方向探测,系统把方位和障碍物大小信息转换成可听声。
32. nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate
夜间活动行似老鼠的哺乳动物，其前肢进化成膜状翅膀，其生理特征适于回声定位并借此导航
33. nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate.
夜间活动行似老鼠的哺乳动物，其前肢进化成膜状翅膀，其生理特征适于回声定位并借此导航。
34. Most bats produce echolocation sounds by contracting their larynx.
大多数蝙蝠通过收缩喉咙所发出的声音实现回声定位。
35. They are one of the few mammals that can use sound to navigate, which is a trick called echolocation.
它们是极少数能用声音导航的哺乳动物之一，这种导航方式即所谓的回声定位法。
36. Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echolocation in bats to see a case in which the voice plays a strictly utilitarian role.
并非动物发出的所有声音都充当语言，我们只要把目光转向在蝙蝠身上发现的奇特的回声定位法，就可以从中看到声音确实发挥实际有效的作用。
37. Not all sounds made by animals serve as language and we have only to turn to that extraordinary discovery of echolocation in bats to see a case in which the voice plays a strictly utilitarian role.
并非动物发出的所有声音都充当语言，我们只需要借助于蝙蝠回声定位的伟大发现，就可以发现声音起一个完全实际作用的情况。
38. One species had an echolocation organ, similar to that of modern dolphins.
有一个种具有回声定位器官，类似于现代的海豚。
39. When Ben was 3, he began teaching himself echolocation, something he picked up by tossing objects and making clicking noises to find them.
本在三岁时开始自学回声定位，他通过丢掷物体，然后发出舌音再找到物体，逐步学会了回声定位。
40. The analysis on echolocation calls of Myotis fimbriatus (Chiroptera:Vespertilionidae)
毛腿鼠耳蝠回声定位声波的分析
41. Beyond illuminating how early bats flew, Onychonycteris has brought some much-sought-after evidence to bear on the debate over when flight and echolocation emerged.
爪蝠除了能说明早期蝙蝠如何飞行之外，还为飞行和回声定位究竟何者较早出现的辩论，带来一些关键证据。
42. When Ben was 3, he began teaching himself echolocation, something he picked up by tossi ng objects and making clicking noises to find them.
班恩三岁时，就自学回声定位，他丢掷物体再藉由发出舌音去找那些东西，这样就学会了。
43. Echolocation calls are usually ultrasonic ranging in frequency from 20 to 200 kilohertz (kHz), whereas human hearing normally tops out at around 20 kHz.
用于回声定位的叫声一般是20－200千赫之间的超声波，而人所能听到的最高频率在20千赫左右。
44. Indeed, it is this creature that most likely developed the complex echolocation system seen in modern day toothed whales.
的确，很有可能是发展到现的齿的鲸所拥有的的复杂的声纳系统系统。
45. echolocation by blind
盲人回声定位
46. We studied the echolocation calls and acoustic response properties in the inferior colliculus of the least horseshoe bat Rhinolophus pusillus.
研究了菲菊头蝠自由飞行状态下的回声定位信号和下丘神经元的声反应特性。
47. The identification method of the echolocation calls from four species of Rhinolophus in flight was studied based on the wavelet packet decomposition.
研究了飞行状态下的四种菊头蝠回声定位声波的识别方法。
48. The answer is that they use echolocation or sonar.
答案是：它们用回声定位或者说声纳系统。
49. Correlation Analysis of Nose Leaf Width and Echolocation Domain Frequency in Rhinolophus Bats
菊头蝠科蝙蝠鼻叶宽与回声定位声波主频率的相关分析
50. Spectrotemporal characteristics of echolocation pulses and frequency tuning by inferior collicular neuron of Rhinolophus pusillus
菲菊头蝠回声定位信号特征及下丘神经元频率调谐
51. Also known as orcas, these marine mammals often use echolocation to find their prey, which usually consists of fish and squid.
虎鲸也被叫做逆戟鲸，这些海洋中的哺乳动物经常使用回声定位能力去捕食，它们的食物通常是鱼类和鱿鱼。
52. Most species are highly vocal,although they vary in the range of sounds they produce,and many forage for food using echolocation.
虽然它们产生的音域参差不齐，大部分类别都有很高的歌声，许多种类运用回声测定来觅食。
53. "bat:any of various nocturnal flying mammals of the order Chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey."
蝙蝠:一种翼手目的夜间飞行的哺乳动物,它们具有能从前肢伸到后肢或尾巴的膜状翅膀,其生理结构能够靠声波定位,并以此导航和捕食。
54. Keywords bat;intensity sensitivity;inferior colliculus;pulse repetition rate;echolocation;
蝙蝠;强度敏感性;下丘;重复率;回声定位;
55. Any of various nocturnal flying mammals of the order Chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey.
蝙蝠一种翼手目的夜间飞行的哺乳动物，它们具有能从前肢伸到后肢或尾巴的膜状翅膀，其生理结构能够靠声波定位，并以此导航和捕食
56. echolocation call of bats
蝙蝠回声定位叫声
57. Time-frequency analysis of echolocation call of bat based on continuous wavelet transform
蝙蝠回声定位叫声的连续小波时频分析
58. Most bats navigate by echolocation.
蝙蝠是靠回声定位法来导航的。
59. Relationship between the echolocation frequency and body size in six species (Chiroptera:Vespertilionidae)
蝙蝠科六种蝙蝠回声定位声波频率与体型的相关性
60. any of various nocturnal flying mammals of the order Chiroptera,having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation,by which they navigate and hunt prey
蝙蝠，一种翼手目的夜间飞行的哺乳动物，它们具有能从前肢伸到后肢或尾巴的膜状翅膀，其生理结构能够靠声波定位，并以此导航和捕食
61. BAT: Any of various nocturnal flying mammals of the order Chiroptera, having membranous wings that extend from the forelimbs to the hind limbs or tail and anatomical adaptations for echolocation, by which they navigate and hunt prey.
蝙蝠：一种翼手目的夜间飞行的哺乳动物，它们具有能从前肢伸到后肢或尾巴的膜状翅膀，其生理结构能够靠声波定位，并以此导航和捕食。
62. Please describe the importance of dolphin's echolocation and suggest ways to protect their habitats in a maximum of 200 words.
请以约一百五十字讲述回声定位对海豚的重要性，及我们能如何保护牠们的居住环境。
63. Keywords ultrasonic sensor;virtual instrument;the blind;echolocation;time of flight;
超声波传感器;虚拟仪器;盲人;回声定位;时间渡越法;
64. The technique is called echolocation , and many species, most notably bats and dolphins, use it to get around .
这种技术叫做回声定位，很多生物，特别是蝙蝠和海豚，都藉由这种技术来去自如，
65. ECHOLOCATION CALLS OF GREATER HORSESHOE BAT AT DIFFERENT BEHAVIOR
马铁菊头蝠不同行为下的回声定位叫声
66. Furthermore, there would be some JAR in the FM part of H. armiger’s echolocation calls (2) JAR in duration: species emit CF/FM echolocation calls would also shorten duration when flying in pair.
（2）与叫声时间有关的避免干扰反应假说：常频/调频型蝙蝠会藉由缩短叫声时间，以减少同种出现时造成的干扰。
