面必须坚固、干净、平整，无油污、浮尘以及其它松动物。
The base surface must be sound, clean, smooth, no oil, dust and other loose animals.
否则应对空气过滤减压阀进行日常维护保养，确保输入空气干燥、无油污。
Otherwise deal with air filter relief-pressure valve for routine maintenance, ensure that the air dry, no pollution.
表面处理：施工表面必须清洁，无积水、无蜡、无灰尘、无油污及其他附着物。
Surface treatment: the surface must be clean, no water, no wax, no dust, no pollution and other fixtures.
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