论述了导电式水位检测计的工作原理。

An operation principle of conductive water level meter is proposed.

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对超声湿度检测计的组成、工作原理作了理论上的预测。

The composition and operating principles of a wetness detection ultrasonic device are predicted from an theoretical perspective.

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如果是的话，室内能源检测计或鼓励从下至上的活动对城镇和小区进行彻底的绿色改造这两种做法哪种更好些？

If so, is that better done with, say, energy monitors in homes or the encouragement of bottom-up campaigns to give green makeovers to towns and districts?

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