求翻译：表观：对管线进行全线目测检查，在预制厂应逐根目测检查，补口、补伤处应逐个检查， 防腐层表面应平整， 搭接均匀，无永久性气泡、皱折和破损。是什么意思？

Apparent: the pipeline full range of visual inspection, in the precast plant by the root visual inspection, mending, and fill the wound to check one by one, the coating surface should be smooth, uniform lap, no permanent air bubbles, wrinkles and damaged.

Appearance: the pipeline for full visual inspection, the prefabricated factory should be visually checked one by one, fill, fill the check should be on a case-by-case basis, and corrosion resistant surface should be flat, uniform, and no permanent air bubbles and wrinkles, broken.

Apparent: Carries on the entire line range estimate inspection to the pipeline, should chase the root range estimate inspection in the prefabricated factory, makes up the mouth, makes up the sores to be supposed to inspect one by one, the anticorrosion level surface should level, joining is even, no

Table view: full Visual inspection of the pipeline, in precast plants by Visual inspection, fill, fill the wound should be checked individually, coating surfaces should be smooth, uniform lap, no permanent air bubbles, wrinkles and tears.

正在翻译，请等待...