他正在实验室做实验 He was laboratory experiments ; He is the laboratory experiment ; He is being laboratory experiments
有人看见他在实验室做实验。
昨天晚上在实验室做实验的正是我父亲。
It was my father who did the experiment in the lab yesterday evening.
我哥哥在实验室做实验。
If you did it in the lab or on your computer screen, you would do it by pushing buttons.
如果你在实验室做,或者在电脑上做,你需要按键。
This is actually very representative of when you do research in the laboratory, you will find often things do not work quite exactly as they worked 20 minutes ago when you just checked it in your office, for example.
在实验室做研究时,这个实际上是非常具有代表性的,举个例子,当时只是在办公室核查它时,你经常会发现事物无法,像它们20分钟之前那样精确的工作。
When they do the big collider experiments in Geneva or Fermilab, collaborations can run into hundreds.
当他们在日内瓦或费米实验室,做粒子对撞的实验时,工作小组能有几百人
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