单选题
发布日期:2021-03-22
regulate the fluid flow in either direction
restrict movement of hydraulic fluid in one direction, but allow free movement in the other direction
allow free movement of hydraulic fluid in both directions
allow a restricted fluid flow in one direction only
题王网让考试变得更简单
扫码关注题王,更多免费功能准备上线!
此试题出现在
反复发作的癫痫患者的药物治疗应( )
工程量清单的编制者应该是()。
全面收集所承担工程项目施工过程中应执行的标准,并做好落实标准的相关措施与制度是标准员在()中的职责。
消化性大出血是指数小时内出血量多于()
下列各项中,不属于性欲减退的是()。
市场营销学定义的新产品包括三类,即()、换代产品、()、新牌子产品。
(100-46)÷6的得数是()
试述食品添加剂的概念及常用的食品添加剂。
以下需与结节性痒疹进行鉴别诊断的疾病有( )
乳癌术后,指导病人开始活动肩部的时间是术后( )。
暂无相关推荐~
An orifice-check valve placed in a hydraulic system is used to()
An orifice-check valve placed in a hydraulic system is used to()
If the compensating needle valve of a hydraulic governor is opened more than nec...
If the relief valve on the discharge side of a hydraulic pump lifts, the cause c...
What type of valve is used to direct the flow of hydraulic fluid?()
Adjustments to the compensating needle valve in a hydraulic governor should be m...
If the compensating needle valve of a hydraulic governor is opened more than nec...
Adjustments to the compensating needle valve in a hydraulic governor should be m...
What type of valve is used to direct the flow of hydraulic fluid?()
If the relief valve on the discharge side of a hydraulic pump lifts, the cause c...