IC type overload protection circuit has gradually replaced thermal relay overload protection mode.
煤电钻采用热继电器进行过载保护方式已逐渐被IC型过载保护电路取代。
"Transfer mode" used motor oil transfer mode, there is no overload protection function, the load increased, the four tension rod threads, thread nut transfer mold damage.
“调模”使用油马达调模，没有过载保护功能，负载加大后，四根拉紧杆螺纹、调模螺母螺纹会损坏。
"Transfer mode" used motor oil transfer mode, there is no overload protection function, the load increased, the four tension rod threads, thread nut transfer mold damage.
“调模”使用油马达调模，没有过载保护功能，负载加大后，四根拉紧杆螺纹、调模螺母螺纹会损坏。
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