The key corresponding to the lock of the well lid is provided with a groove which corresponds to the marble on the lock core.
一种所述井盖锁对应的钥匙：其特征在于：所述的 钥匙上设置有与锁芯上弹子相对应的凹槽。
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.
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.
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。
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