The rugged construction is double-sealed to prevent water and dust ingress even during site wiring.

坚固的建筑是双重密封，以防止水和灰尘进入即使在现场布线。

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A unibody design eliminates unnecessary joint faces where leakage may occur, and features a double-sealed end plug.

整体式结构避免了可能出现泄漏的不必要的连接面，具有双密封端塞功能。

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The utility model provides a double-sealed special valve for combustion gas, belonging to a special valve for the combustion gas.

本实用新型提供的双密封燃气专用阀属于一种燃气专用阀。

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Ian Chiddicks, contracts manager at Solent Environmental Services insisted the asbestos was "double-bagged" and the sealed skips and premises were kept secure.

BBC: Asbestos depot causes concern for Holbury residents

He swiftly sealed the double-break, set up by a backhand return winner up the line, followed by his opponent dumping a meek forehand into the net.

BBC: Australian Open: Andy Murray crushes Garcia-Lopez