词汇	oil tank vent
释义	oil tank vent 油槽排气管
随便看	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 double-acting sucker rod pump double acting switch double acting synchronous sampling double acting type Double-acting type pneumatic pile hammer Double-acting vane pump double acting viscous cement damper doubleaction double action double-action Double-action double actionability double action acting floor spring double actionactingspring butt hinge double action acting spring butt hinge double-action bellows doubleaction black japanned spring hinge