Wipe out any dust or dirt and install the provided dust cap after disconnecting hose.

消除干净尘土或者污渍并且在断开软管之后安装提供的防尘帽子。

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Please avoid cashing or bumping them in use, Put on the dust cap immediately after using.

使用中请避免磕碰，使用后请及时戴上防尘帽。

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The core box dust cap is characterized in that a square core box cover (2) matched with the periphery of the core box is mounted on the core box (1).

岩心盒(1)上装有与岩心盒周边相吻合的方形岩心盒盖(2)。

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The bull run of 1996-97 left small-cap and midcap stocks in the dust, but now many big-cap growthies and financials are casualties.

FORBES: Cracks in the Nifty Fifty

Impact craters surrounding the cap appear to be filled with ice and dust that was either deposited by wind or condensation, or perhaps further remains from an earlier larger ice cap.

BBC: By BBC News Online Science Editor Dr David Whitehouse