The needleless connector comprises a connector adapted to receive a syringe and having a check valve to seal the port in place of a puncture pad .

该无针连接器包括适于接收注射器并且具有替代刺穿 垫密封端口的止回 阀的连接器。

WILLIAMSON company has provided for floating ball valve with a mounting pad through which it is easy to fix the actuators such as worm gear pneumatic and electric actuators .

威廉姆森公司的浮动 球阀均设置了安装驱动装置的支架 平台，通过驱动装置支架，可以方便的安装蜗轮蜗杆传动装置、气动装置或电动装置。

The valve consists of an electromagnetic loop a valve core a replacement spring and a shell and the valve core consists of a retaining iron a movable bar and a sealing pad .

它由电磁线圈、阀芯、复位弹簧和外壳组成， 阀芯由挡铁，动杆和密封 垫 构成。

Testing of the Characteristics of Relationship between the Opening Degree Difference of a Steam Turbine Regulating Valve on the One Side and Bearing Pad Temperature and Oil Film Pressure on the other Side

汽机调节 阀开度差与 轴瓦温度及油膜压力之间关系特性试验