词汇	continuous beam of light
释义	continuous beam of light 持续光线
随便看	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 double-acting spring butt double acting steam engine double-acting steam engine double acting steam hammer double-acting steam hammer double acting steam pile driver double-acting stream hammer