hydrogen

hydrogen

1. P for 20 mins, and followed by DAB and hydrogen peroxide mixture.

1：100S－P溶液室温孵育20分钟；

2. The lightest element is hydrogen .

275最轻的元素是氢。

3. A molecule is a thousand times bigger than an atom of hydrogen.

一个分子比一个氢原子大一千倍。

4. A chemist can isolate the oxygen from the hydrogen in water.

一个化学家能把水中的氧和氢分解。

5. Being combined with two hydrogen atoms, one oxygen atom may form a molecule of water.

一个氧原子同两个氢原子化合，可以形成一个水分子。

6. One proton is almost as heavy as an entire atom of hydrogen.

一个质子几乎与整个氢原子的重量相等。

7. An acid having one replaceable hydrogen atom.

一元酸只有一个可置换氢原子的酸

8. A good general-purpose gas has about 97% nitrogen and 3% hydrogen.

一种较好的通用气体含大约97%的氮气和3%的氢气。

9. Burns may result from unknowingly walking into a hydrogen fire.

不知不觉走进氢火焰会导致烧伤。

10. Unlike hydrogen, carbon dioxide is non-combustible.

与氢不一样，二氧化碳是不可燃的。

11. The addition reaction with hydrogen cyanide is base-catalysed.

与氰氢酸的加成是碱催化的。

12. Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合而成一个水分子。

13. Methods for Hydrogen Production at Small or Medium Scale?

中小规模的制氢方法?

14. Containing two replaceable hydrogen atoms.

二元的含有两个可取代的氢原子的

15. They could use the hydrogen for energy," said Saal.

人们有可能得到水，可以把氢作为能源。”

16. What symbol stands for hydrogen and what for oxygen?

什么符号代表氢，什么符号代表氧?

17. The method of purifying hydrogen chloride is introduced.

介绍了一种氯化氢精制技术。

18. They say hydrogen peroxide or carbamide peroxide may also help.

他们还认为过氧化氢和过氧尿素也有所帮助。

19. He was busy filling out the balloon with hydrogen.

他正忙着给汽球充氢气。

20. Water consists of hydrogen and oxygen, as is known to all.

众所周知,水是由氢和氧组成的。

21. But Mittleman says hydrogen cars are worth the wait.

但是米特尔曼说，氢燃料车值得等待。

22. Yet barriers to gassing up cars with hydrogen are significant.

但要真正用氢当做汽车的动力来源，还有很多障碍。

23. Atomic hydrogen was formed as a breakup product of the ions.

作为这两种离子分裂的产物，形成了原子状态的氢。

24. Water,you know,is made up of hydrogen and oxygen.

你知道，水是由氢和氧构成的。

25. Hydrogen and oxygen, for example, are both gases.

例如，氢和氧都是气体。

26. How many hydrogen atoms are present in 16 grams of methane ?

十六克甲烷中有多少氢原子?

27. The ones without CSE had much lower levels of hydrogen sulfide.

去除CSE组的老鼠硫化氢含量相对低很多。

28. The Luminol and hydrogen peroxide under go a chemical reaction.

发光氨与过氧化氢进行化学反应。

29. Other men filled balloon with a gas called hydrogen.

后来又有人用一种氨气球。

30. Both nebulas shine brightly in the red light of energized hydrogen.

在上面这张影像中，这二个星云都发出强烈的游离化氢之特徵辐射。

31. Of all gases hydrogen is the highest.

在所有的气体中氢是最轻的。

32. Hydrogen has a reputation for being explosive and dangerous.

大家知道氢气易爆，十分危险。

33. Natural bugs can turn out both hydrogen and methane.

天然的细菌可以生产氢气和甲烷。

34. Her boyfriend fed a box of oxygen and hydrogen to the ox andfox.

她男朋友给牛与狐狸喂了一盒子氧与氢。

35. Her boyfriend fed a box of oxygen and hydrogen to the ox and fox.

她男朋友给牛和狐狸喂了一盒子氧和氢。

36. Letter "O" stands for oxygen and "H" for hydrogen.

字母“O”代表氧，“H”代表氢。

37. They react with many metals to form a salt and give off hydrogen.

它们能和许多金属起反应，生成盐并放出氢。

38. It has studied the action of hydrogen peroxide on nitrous acid.

它研究了过氧化氢对亚硝酸的作用。

39. BMW - the forerunner and leader in hydrogen drive technology.

宝马-先导和氢气驱动技术的领导者。

40. Like hydrogen and oxygen, for some couples, opposites attract.

就像氢和氧，有些人成双成对的缘故是因为异性相吸。

41. The rings are opened with hydrogen chloride and deuterium chloride.

应用氯化氢和氯化氘打开沅环。

42. The easiest way to make one is to add a hydrogen ion (H+).

形成阳碳的最简单的办法就是加上一个氢离子。

43. Micro cells use energy sources like hydrogen and methanol.

微型电池用像氢气、甲醇这样的能源。

44. We will consider this Zeeman effect for the hydrogen atom.

我们将对氢原子考虑此塞曼效应。

45. My Mercedes vehicle is the hydrogen power.

我的梅塞德斯车是氢动力的。”

46. I think it impossible that hydrogen can ever be made into a metal.

我认为氢气能被制成一种金属是不可能的。

47. So there are hydrogen and oxygen atoms in sugar.

所以糖里含有氢原子和氧原子。

48. Critics note the high cost of producing hydrogen.

批评家们强调氢生产的高昂成本。

49. Analyse water into oxygen and hydrogen.

把水分解成氧和氢。

50. The situation of hydrogen production from propane is summarized.

摘要综述了丙烷催化转化制氢的国内外发展状况。

51. Prior work used renewable hydrogen to maximize CO2 capture.

早期研究中用可再生的氢来固定二氧化碳。

52. Yes. you guessed it right, this Beemer runs on hydrogen.

是的，你猜对了，这是一款以氢为能源的宝马车。

53. The lightest element is hydrogen.

最轻的元素是氢。

54. It gets the hydrogen and helium right.

根据结果表示，氢元素和氦元素都比较正常。

55. Other series spectra for hydrogen have since been discovered.

此后又发现了氢原子的其他光谱线系。

56. An acid containing only one replaceable hydrogen atom per molecule.

每个分子仅含有一个可置换的氢原子的酸。

57. The balloon was distended because of filling of hydrogen.

气球因充满了氢气而膨胀。

58. An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.

氘氢的一种同位素，在其原子核内有一个质子和一个中子，其原子重量为2。014

59. The most abundant isotope of hydrogen, H1, with atomic mass1.

氘氢的数量最丰富的一种同位素，H1，原子质量为1

60. The most abundant isotope of hydrogen,H1,with atomic mass1.

氘氢的数量最丰富的一种同位素，H1，原子质量为1。

61. The hydrogen binds the oxygen.

氢与氧化合。

62. Hydrogen combines with oxygen to form water .

氢与氧化合形成水。

63. The elements hydrogen and oxygen combine to form water.

氢元素和氧元素构成了水。

64. Hydride : Inorganic compound of hydrogen with another element.

氢化物: 氢与另一种化学元素的无机化合物。

65. Hydride : inorganic compound of hydrogen with another element.

氢化物:氢与另一种化学元素的无机化合物。

66. Hydrogen might be depleted with some of it turning into helium.

氢可能被耗尽，一部分变为氦。

67. Hydrogen and oxygen combine to form water .

氢和氧化合形成水。

68. The hydrogen and the oxygen react.

氢和氧发生化学反应。

69. Hydrogen and oxygen are gases.

氢和氧是气体。

70. Hydrogen and oxygen are the constituents of water.

氢和氧是水的主要成分。

71. When hydrogen is combined with oxygen it creates water.

氢和氧结合形成水。

72. Both hydrogen and oxygen are elements.

氢和氧都是化学元素。

73. Hydrogen is a one-valence element.

氢是一价的元素。

74. The hydrogen is the known the lightest element.

氢是已知的最轻的元素。

75. Hydrogen is by far the lightest of all elements.

氢是所有元素中最轻的。

76. Hydrogen is the lightest of all elements.

氢是所有元素中最轻的（元素）。

77. Hydrogen is the lightest chemical element of all.

氢是所有化学元素中最轻的。

78. Hydrogen is a colorless, odorless, tasteless, highly flammable gas.

氢是无色、无嗅、无味、极易燃的气体。

79. Hydrogen is the lightest element .

氢是最轻的元素。

80. Hydrogen is one of the lightest elements.

氢是最轻的元素之一。