不要用扳手打开阀门。

Do not open the valves with spanners.

youdao

我发现最容易打开阀门所有的方式，使一个三角形的什么动作就在这个顺序。

I found it easiest to turn the valves all the way to make a triangle regarding of what else moves in this order.

youdao

警方表示，嫌疑犯熟悉油厂事务，而且能打开阀门，让好几百万吨的石油哗啦啦的流走。

Police say the saboteur must have had a working familiarity with the refinery to be able to open the tank's main valve and send tons of oil pouring out.

youdao

So the Joule free expansion involves opening this valve and asking what happens when this gas moves into the other bulb or distributes between the two.

焦耳自由膨胀就是,打开阀门后的过程,气体从一个腔跑到另一个腔,并在它们之间平均分配。

麻省理工公开课 - 热力学与动力学课程节选