为了测量管口的尺寸,通常采用计算机视觉方法。
For measuring the pipe orifice, a computer vision method is used.
我拿掉了试管口的棉花塞,把金色小鸟倒在我的掌心。
I remove the cotton wadding from the mouth of a tube and shake a gold finch onto my palm.
然后,当你拔起堵住管口的塞子时,使用过的水就会顺着排水管流走。
Later, when you unplug the stopper, the used water will go rushing out down the drain.
Or in many kinds of gas refrigerators where you push a gas through a nozzle close to room temperature, what you find is that the gas coming out on the other side under lower pressure is cooler than the gas that went through on the other side.
或者在很多种压缩气体式冰箱中,你让气体通过接近室温的管口,你会发现从压力低的一边,出来的气体比通过,另一边的气体更冷,真正的冰箱实际上通过。
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