The flow sensor made the leaf wheel change the pulse signal, the computer use the pulse number to record the heat water quantity.

流量传感器将叶轮转动信号转换成电脉信号，计算机通过记录脉冲数实现对流过的高温水进行累计测量；

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If you want to change the direction of the car, you have to have your hands on the steering wheel.

如果你想改变汽车的方向，你必须把手放在方向盘上。

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When they wheel you into the operating room, climate change is probably the last thing on your mind.

当他们把你推进手术室的时候，你大概不会想到气候变化的事。

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The new Lamborghini Aventador and Veneno super cars offer their drivers paddles on the left and right sides of the steering wheel to change gears although the car will shift itself automatically.

WSJ: Changing Gears: Auto Makers Ditch Familiar Shift Levers

In its final version, the keyboard will look a bit different, though the top will continue to be mostly bare, depending instead on that wheel to change between instrument, pitches and the like.

ENGADGET: Roli's Seaboard is a rubber-keyed piano that may redefine the way you play

"If you got a heavy vehicle trying to change a wheel then, instead of the vehicle being jacked up, the jack sank into the ground, " said Mr Yeadon.

BBC: Marking 50 years of UK motorways