精确
词首
词尾
模糊
搜单词
背单词
题海网
ultrasound
基本释义
详细释义
双解释义
英英释义
常见例句
ultrasound
noun
[mass noun]sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging
超声;超声波
■[count noun]an ultrasound scan, especially one of a pregnant woman to examine the fetus
(尤指对孕妇胎儿检查)超声波扫描
热门查询
nitrify vt.使与氮化合,用氮饱和,硝化
nitrite n.亚硝酸盐
nitroaniline n.硝基苯胺
nitrobacteria n.硝化细菌
nitrobenzene n.硝基苯
nitrobenzol 硝基苯
nitrocellulose n.硝化纤维
nitrochalk n.白垩硝,钾铵硝石
nitrochloroform n.三氯硝基甲烷
nitrocotton n.强棉药
nitrogen n.[化]氮,氮气
nitrogenase n.固氮酶,定氮酶
考试词汇表