说明：钢塔的内表面必须足够干燥后才能在其上面行走或进行下一步的组装工作。
NOTE: the interior surface of steel towers must be dry enough to be walked upon prior to further assembly work.
在刚经过涂覆的表面进行干燥时，必须防止其受有害条件的影响。
The freshly coated surfaces must be protected against all injurious influences while drying.
工件的所有表面都必须被彻底清理，并且在进行渗透探伤前应完全干燥。
All surfaces of a workpiece must be thoroughly cleaned and completely dried before it is subjected to liquid-penetrant inspection.
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