The principle and structure of the shunt standard humidity generator are introduced.

研制了分流式标准湿度发生器。

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Avoid operate or reserve in the room with high air pressure, humidity and temperature out of the required standard, airless, or the objects of flammable, explosive, corrosive materials.

避免在气压过大，湿度、温度超出规定标准，通风不良，或有易燃、易爆、强腐蚀性物品的场所使用、贮存。

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Temperature and relative humidity depend on the product and nature of the operations carried out. These parameters should not interfere with the defined cleanliness standard.

应当根据产品及操作的性质制定温度、相对湿度等参数，这些参数不应对规定的洁净度造成不良影响。

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They also don't require tuning, are impervious to the swings in humidity that wreak havoc on standard pianos, and can be played silently with the use of headphones.

WSJ: Digital Pianos: Great Performers for Tight Spaces