The design and application situation about HZ type dust proof airtight cover is introduced.

简要介绍了HZ型防尘密闭罩的研究设计和工程应用情况。

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The redeveloping is based on the traditional road lamp housing to ensure it is available for the original lamp. It has pretty good dust proof function.

运用传统路灯外壳进行改造，便于在原有基础上的更换，有很好的防尘效果；

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

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

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