Piezoelectric crystals produce an electric current when bent and have many USES - the igniter on a gas barbecue grill being one of them.

压电晶体在发生弯曲时能够产生电流，并且已有很多用途——燃气烧烤的点火器就是其中之一。

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The most widespread of these known techniques is ultra sonic agitation with piezoelectric crystals, converting electrical energy into mechanical energy.

最广泛的技术是超声晶体震荡，将电能转化成为机械能量。

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Explain the characteristics of piezoelectric crystals and the factors relating to the resonant frequencies of a piezoelectric crystal, and the procedure of the pulse-echo method.

说明压电晶体的特性和与压电晶体的共振频率有关的因数，以及脉波-波法的过程。

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Priya's 4-inch diameter 'mills differ from their larger counterparts in that they employ piezoelectric crystals which generate a current when flexed by a rotating cam.

ENGADGET: Miniature windmills could power outlying wireless networks

To get around this problem, Friend turned to a piezoelectric power source--crystals that produce electricity when under pressure.

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