| 释义 |
dust cover
释义
封面保护罩：书籍封面上的保护罩，用于保护书籍封面不受灰尘、污垢等的侵害。
例句
1·Dust cover and seal with double protection, isolated pollution.
采用防尘盖和密封圈双重保护，隔绝污染。
2·The straight line may pass through the center of the dust cover of each acoustic driver.
所述直线可以经过每个声学驱动器的防尘罩的中心。
3·A rectangular sealing ring and a plunger dust cover are provided outside of the plunger.
活塞外设有矩形密封圈和活塞防尘罩。
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