Public anxiety behind wearing a gas mask wedding photograph

At 15:40 on the 25th, on the northeast corner of the Beijing International Trade Bridge, a pair of couples took wedding masks with their gas masks. This kind of alternative commemorative idea caused many passersby's curiosity. Soon after the filming, the photographer and the two people immediat

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Love ear noise and ear protection can protect hearing

Do you usually like to wear headphones to listen to music? Do you often open windows when you drive? Do you usually work or study in a noisy environment? Is the living environment quiet? Many people are accustomed to these things, but few people understand these habits and The environment will affe

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Natural gas compressor intake and exhaust valve description

Hongshen Natural Gas Compressor Factory Intake and Exhaust Valve. Zhengda Natural Gas Compressor Factory Exhaust Valve. Joint Compressor Factory Intake and Exhaust Valve. [Photo] Natural gas compressor intake and exhaust valve ZP100 primary exhaust valve ZP100 first stage intake valve ZP100 se

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How to realize energy saving in China's inverter

When the production process requires adjustment of the process parameters, the flow rate can only be changed by increasing (reducing) the system resistance method, and the motor is always running under the rated operating conditions, resulting in waste of electrical energy. The frequency convers

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