单词	外缩作用
释义	外缩作用 Wài Suō Zuò Yòngexocondensation
随便看	single-acting cylindrical cam single acting die single-acting diesel engine single-acting disk harrow single acting dobby single-acting dobby single-acting door singleacting engine single acting engine single-acting engine single-acting fuel supply pump single acting hammer single-acting hammer single acting hand pump single-acting hand pump single-acting hydraulic press single acting hydraulic shock absorber single-acting hydraulic shock absorber single acting jack single acting motion single acting oil cylinder single acting pile hammer single-acting pile hammer single-acting pile-hammer single acting piston