drawback cylinderkicker cylinderpullback chamberpullback cylinderreturn cylinder回程: return trip; return stroke; ...缸: jar; jug; vat; crock快速回程缸: regenerative actuator; regenerative cylinder回程: return trip; return stroke; reverse drive; reverse running; recurrence; rickback; return; retrace; swing; flyback◇回程时间 return interval; flyback period行程缸: travel cylinder下载手机词典可随时随地查词查翻译