Limit switch, directly actuated, spring returned, normally open. Right-click for open or held closed.
限制开关，直接启动，弹簧复位，正常情况下为断路。右击断开或保持闭合。
These groups are regularly closed down, but others quickly spring up in their place.
这些群体经常被关闭，但是其他同类型的会迅速涌现。
The shop is closed during spring holidays.
春节期间商店关门。
Limit switch, directly actuated, spring returned, normally closed.
直接启动、弹簧复位、正常闭合的限制开关。
Protected spring compensator to maintain closed door position;
弹簧保护补偿器用于固定门板闭合位置；
Actuator Type: Power open and spring closed.
触动器类型：电源开启和弹簧闭路。
Limit switch, directly actuated, spring returned, normally closed.
直接启动、弹簧复位、正常闭合的邻近限制开关。
A spring on the valve stem tends to hold the valve on its seat (closed).
气门杆上的弹簧使气门保持在气门座上(关闭状态)。
A spring on the valve stem tends to hold the valve on its seat (closed).
气门杆上的弹簧使气门保持在气门座上(关闭状态)。
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