3 oxygen disinfector 三氧消毒
3 oxygen disinfector machine 三氧消毒机
Marine Oxygen-isotope stage 3 深海氧同位素三阶段
oxygen isotope stage 3 氧同位素第期
At 3, 776m the mountain is high enough to cause altitude problems, and we were not alone in being grateful for oxygen later on.
富士山顶海拔3 776米,足以引起高原反应,我们也不是后来仅有的使用了氧气的人。
Most species prefer a micro-aerobic atmosphere (containing 3-10% oxygen) for growth.
多数菌种喜欢微氧生长环境(含3-10%的氧气)。
In a Stanford press release, Cantwell says the nitrous oxide can heat an engine to almost 3, 000 degrees Fahrenheit and expel nitrogen and oxygen at 5, 000 feet per second.
Cant well教授在斯坦福出版的新闻稿中说,氧化氮能把发动机加热到华氏3,000度,排出氮气和氧气每秒钟5,000英尺。
So oxygen gets 3 pairs, and each chlorine gets 3 pairs, so now we're up to 9 pairs.
那么氧都有三对,每个氯有三对,那么现在我们用了九对了。
Well, oxygen, we'll put a hydrogen here, 1 2 3 4 hydrogen here, and one, two, three, four.
如果把一个氢放在这边,另一个氢这边,然后。
So it's going to be a sigma bond, 1s and we have oxygen 2 s p 3 and hydrogen 1 s.
它是sigma键,我们有氧2sp3和氢。
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