【化】 受迫振动; 强迫振动

摘要介绍了新型音叉受迫振动与共振实验仪。通过音叉双臂与振动周期关系的研究，可以深入理解振动式液体密度传感器的原理及其应用。

揭示了转点频段薄壳强迫振动的3种特殊效应：无弯曲效应、内部静止效应和内部薄膜运动外部弯曲运动效应。

forced vital capacity, FVC

forced expiratory volume in first second, FEV1

Forced Swim

forced oil-circulated air-cooled transformer【电】

air circulation, forced

forced quarantine

Forced Convection Constant Temperature Drying Ovens

FEV1 forced expiratory volume in the first second