词汇	film supporting unit
释义	film supporting unit n.承片框,压平装置
随便看	double actingpneumaticcylinder double acting pneumatic cylinder double acting pneumatic hammer double acting points double acting positioner double acting power unit double-acting power unit double acting press double-acting press double acting pump double-acting pump double-acting raising machine double acting ratchet withdrawing mechanism double acting regulator double-acting regulator double acting relay double-acting relay double acting rotary engine double-actings double acting shock absorber double-acting shock absorber double-acting single piston rod oil cylinder double acting sprayer double-acting sprayer double acting spring butt