... door latch 门栓，门钩 door limit switch 门限位开关 door linkage 门连杆 ...
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... 和父母过五一 » And parents of 51 门下限开关 » Door limit switch 你现在大几了啊 » You are now a few ...
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The second control return circuit is composed with a mutually connected weight limit switch, security door by-pass switch and a middle relay.
第二控制回路由互相串联的限重开关、安全门旁行程开关和中间继电器组成。
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