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。

youdao

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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Super thin design, unique structure, dust-proof, pest control, anti external interference.

超薄设计，结构独特，防尘、防虫，抗外界干扰。

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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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