The characteristic employment method, disinfection mechanism, toxicity and protection of food grade hydrogen peroxide were re- viewed.

介绍了食品级过氧化氢的特性和使用方法﹑ 灭菌机理及其毒性与防护。

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Both experiments and calculations re-veal that the hydrogen diffuses from the specimen to the atmosphere in the austenising process.

结果表明：在保护奥氏体化过程中钢样中氢的化学势比气氛中高而导致钢中的氢向保护气氛中扩散。

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Used Hydrogen Peroxide Plant and Process, complete Hydrogen Peroxide Plant and Process for re-location throughout the world.

二手过氧化氢装置和工艺，成套过氧化氢装置和工艺可以在世界各地重新安装。

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All right. So, let's pick up where we left off, first of all we're still on the hydrogen atom from Monday.

好，让我们从上次停下的地方讲起，我们还要讲周一讲的氢原子。

麻省理工公开课 - 化学原理课程节选

One of the main difference is is that when you're talking about multi-electron orbitals, they're actually smaller than the corresponding orbital for the hydrogen atom.

其中最主要的区别之一,是当你讨论多电子轨道时,它们实际上，要比对应的氢原子轨道,要小一些。

麻省理工公开课 - 化学原理课程节选

Also, when we're looking at the Schrodinger equation, it allows us to explain a stable hydrogen atom, which is something that classical mechanics did not allow us to do.

当我们看一个薛定谔方程的时候，它给出一个稳定的氢原子,这是在经典力学中做不到的。

麻省理工公开课 - 化学原理课程节选

And in buses on the U.S.' West Coast, we're testing hydrogen fuel-cell engines, designed to replace today's oil-burning engines.

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Still, it's not too hard to imagine a future where the majority of autos run on electrons -- whether they're pushed from batteries or hydrogen fuel cells.

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"Economics dictates that 95% of current U.S. hydrogen is produced by steam-methane re-forming of non-renewable natural gas, " Michael K. Heiman, professor of environmental studies at Dickinson College, wrote in a study of the proposed hydrogen economy last year.

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