Hubble provided visual proof that pancake-shaped dust disks around young stars are common, suggesting that the building blocks for planet formation are in place.

哈勃拍摄到的资料向人们提供了可以看到的证明，它显示，烤盘形状的尘埃盘围绕着年轻恒星的现象是很平常的。

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The device should be placed in the environment with dry, clean, dust-proof, no corrosive gas, no strong electromagnetic interference.

仪器应该安放在干燥、清洁、防尘、无腐蚀气体、无强电磁场干扰的环境中。

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Content, Species, fill Power, Oxygen, Turbidity, Net fill weight, Thread count, Down proof, Dust Evaluation.

含量，种类，填充物蓬松度，耗氧指数，填充物净重量，服装面料支数，防钻绒性，灰尘鉴定。

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Its fully sealed design protects internal components, making it drop-proof, shock-proof, spill-proof, dust-proof, and watertight.

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As previously reported by The Wall Street Journal, the new phone, tentatively called the Galaxy S 4 "Active, " would be waterproof and dust proof.

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Protected against the elements, it is dust and sand proof.

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