Stroke control mechanism for the regulation and precise control of valve opening and closing position.
行程控制机构，用以调节和准确控制阀门的启闭位置。
The switch block adjusts the position of the flow passage by a spring and a push pressing block, so the switch block has the function of opening and closing the toothpaste passageway.
开关块通过弹簧、推压块调整流道的位置，起到开、闭牙膏通道的作用。
Rolling over a position involves closing the old position and opening a new one.
展期涉及到关闭旧的仓位并开启一个新的仓位。
The low-pressure relieving device (4) further comprises a driving piece (8) for driving the movable piece (7) to move to the opening position from the closing position.
所述低压解除装置（4）还包括用以驱动所述可动件（7）从所述第一位置运动到所述第二位置的驱动件（8）；
In the closed position of the circuit-breaker, the opening and closing spring are in charged state. This means the circuit-breaker is in a position to perform O-C-O switching sequences.
在断路器的合闸位置，分闸弹簧和合闸弹簧处于储能状态，此时开关可执行分-合-分操作。
In the closed position of the circuit-breaker, the opening and closing spring are in charged state. This means the circuit-breaker is in a position to perform O-C-O switching sequences.
在断路器的合闸位置，分闸弹簧和合闸弹簧处于储能状态，此时开关可执行分-合-分操作。
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