介绍一种测量抽油杆减振器柱塞密封槽深度的测量工具。
An easy tool for measuring the depth of sealing groove is devised.
泵阀件采用带导向杆的半球形柱塞结构，弹簧制动，精确控制阀球与阀座对中，启闭动作及时。
The pump valve has a structure of semi-spheric plunger with guide rod, and its seat and ball are aligned by means of a spring, and it is opened and closed in time.
举一个例子，在中央负有之间的第一个位置上，不阻尼杆柱塞提供移动和第二个位置上，增加了阻尼的实现。
In one example, a plunger moves within the central bore in the rod between a first position where less damping is provided and a second position where increased damping is achieved.
一些实施例的适配器可包括适合于与注射器柱塞接触的第一侧，和适合于与药液注入器的驱动杆相接触的相对的第二侧。
The adapter of some embodiments may include a first side adapted to interface with a syringe plunger and an opposing a second side adapted to interface with a drive ram of a medical fluid injector.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from top to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.
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