GW dry contact model, which results in the unacceptable error in engineering, has 5 shortcomings in the arithmetic.

GW干接触模型在算法上存在5个缺陷，会引入工程上无法接受的误差。

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Flexible control, the motor adjust air flow can be single period of speed , three or five periods of speed. It is also enclosed operation, abnormal indicator and abnormal dry contact for control.

灵活的控制方式，可作单段速、三段调速、五段调速或无级调速调节风量并附运转/异常指示灯/异常干接点，便于监控；

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Thus some parts of a frog's toe pad are in direct and dry contact with whatever they are standing on.

ECONOMIST: How tree frogs keep their grip

But now, NeuroSky (a fab(u)less startup of US chip designers and Russian neuroscientists chillin' in NorCal) claims a "breakthrough" in non-invasive neural sensors allowing low-cost, dry (no contact gels) neural mapping solutions to be applied to those things you'd most like to mind control (spouse, voters, TV, game console, cellphone).

ENGADGET: NeuroSky to offer thought control without those pesky brain implants

Having relatively dry eyes can make contact lens removal difficult, so try to keep your eyes lubricated, especially around the time you plan to take the lenses out.

CNN: How can I safely remove a stuck contact lens?