The safety switch comprises a heat transfer piece, an insulating seat, a fusible body, a control rod and a movable safety piece.

该保险开关，它包括一热传递片、一绝缘座、一可熔体、一控制杆以及一动保险片。

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The movable safety piece is connected with the insulating system, is supported against by the control rod, and is in normally closed connection with the fixed contact piece.

该动保险片，它连接绝缘系统，而且，它受控制杆顶抵并常闭连 接该定接触片。

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Japanese nuclear safety regulator said on Wednesday that plans were under way to fix a piece of equipment that would allow freshwater instead of seawater to be pumped in.

一位日本核安全监管人在周三称他们已经在制定计划，修好一件设备，用淡水替代海水来灌入反应堆。

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We in the industry have long had great confidence in the blow-out preventer as the ultimate failsafe piece of safety equipment.

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Photographs show the violent force deformed the plane's fuselage, forced the tail wheel to deploy and likely resulted in the plane's trim tab -- a piece of the tail -- to fly off, the safety board said.

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