This is the most common trigger mechanism, but it's not the only one in use. Some areas have had success with radar, laser or air-tube sensors.

这是最普通的触发器机构，但不是唯一在用的。一些地区已经在雷达，激光或空气导管传感器上取得成功。

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The refrigerating identity of an adsorption cooling tube applied in mobile machinery shop air conditioning is researched in this paper.

研究了一种应用于工程车司机驾驶室的新型制冷管的制冷性能。

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Connect Intake-tube with intake-tube of air filter of the rewinder, then get through entering power source.

将进气管与复卷机空气过滤器的进气管相连，然后进入电源。

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The heating and cooling systems use air that has been earth-tempered drawn into a large tube and passed through the ground, which has a consistent temperature that is cool in the summer and warm in the winter.

BBC: The futurist: The sustainable Spaceport America

Among the benefits promised under the new arrangement are a new tube line, a cap on fares, more late-night trains and air conditioning to prevent sweltering summertime conditions.

BBC: Tories propose tube sell-off

Early research involved a colleague lying in a deckchair in the night-time open air with a piece of string to measure the meteors, while he observed electromagnetic signals on a cathode-ray tube in a nearby hut.

ECONOMIST: Bernard Lovell | The