芒在一个垂直的位置上一空心线圈木材基地，使核心可移动通过在阀芯孔向上和向下。
Mount the coil in a vertical position, on a hollow wood base so that a core can be moved up and down through the hole in the spool.
核心应该是这样的规模，这是可以上下移动的阀芯孔，但将保留在任何位置。
The core should be of such size that it can be moved up and down in the spool hole, yet will remain in any position.
通过锁芯（6）控制旋转阀（4）的转动位置，达到控制开关导通或截止的目的。
The lock core (6) is used for controlling the rotating position of the rotary valve (4) in order to obtain the aim of controlling the switch to be switched on or off.
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