单词	double derivative action
释义	double derivative action 数双导数作用
随便看	Piezoelectric crystals piezoelectric crystal unit piezoelectric current piezoelectric curve shell piezoelectric cut piezoelectric cutter piezoelectric cutterhead piezoelectric cylindrical shell transducer piezoelectric cylindrical-shell transducer piezoelectric cylindrical tube piezoelectric cymbal piezoelectric damping piezoelectric damping composites piezoelectric deformation constant piezoelectric delay line piezoelectric delay lines piezoelectric detector piezo electric detector piezo-electric detector piezoelectric device piezo-electric, device piezoelectric diaphragm piezoelectric die adjustment piezoelectric direct effect piezo-electric direct effect