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The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
If the hydrogen is ignited it is likely to explode. 如果氢被点燃,它就可能爆炸。
Zinc displaces the hydrogen of dilute acids. 锌置换了稀酸中的氢。
The hydrogen and the oxygen react. 氢和氧发生化学反应。
What chemical is used in the hydrogen gas dryer? 氢气干燥器里用的是什么化学药品?
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。”
Who knows the atomic weight of the hydrogen atom? 谁知道氢原子的原子量究竟是多少?
the hydrogen turns 氢化
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。
But what ionizes the hydrogen atoms? 那么，又是什么电离的氢原子呢？
My Mercedes vehicle is the hydrogen power. 我的梅塞德斯车是氢动力的。”
In fact, it turns out that some of the relativistic wave functions for the hydrogen atom are infinite at the origin. 事实上，实际情况是氢原子的某些相对论波函数在原点是无限的。
The hydrogen sulfide is often blamed for the corrosion. 硫化氢常常引起腐蚀。
We will consider this Zeeman effect for the hydrogen atom. 我们将对氢原子考虑此塞曼效应。
That new barman at the club really turns me on. 俱乐部那位新来的酒吧男招待员真让我有兴趣。
If the hydrogen is ignited,it is likely to explode . 如果氢被点燃，它就可能爆炸。
The oxygen atom is nearly 16 times as heavy as the hydrogen atom. 氧原子的重量几乎是氢原子的16倍。
If the hydrogen is ignited it is likely to explode . 如果氢被点燃，它就可能爆炸。
How about the performance of the hydrogen generator? 这台氢气发生的性能如何?
The hydrogen content in the sample is read out on DVM. 氢的检测信号由数据处理系统处理,并用数字电压表直接显示出试样中的氢含量。