一系列控制杆连着一枚指针，在刻度盘上显示出压力数。
A series of levers joined to a pointer shows pressure on a dial.
调水阀盖上的刻度盖标有刻度，配合标准杆，就可以知道每次调水阀盖所调的位置。
As a scale cover on the water regulating valve cover is marked with scales, by matching with a standard rod, the regulated position of the water regulating valve cover at each time can be known.
在套筒上四分之一转的刻度，以及阀杆上的刻痕，显示大约的流量测量。
The quarter turn graduations on the sleeve, with the scribed line on the stem, provide for approximate flow measurement.
应用推荐