... entry hole size 入口直径 door hole size 门孔尺寸 Hole Size Reduction 孔径缩小 ...
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Check the field situation, arrange and clean the working area. Check the prepared size of the hole door or of the door pocket to see whether it is accordance with design requirements.
检查现场情况，整理并清洁好工作区域，检查门洞或门套的预留尺寸是否符合设计要求；
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