求翻译：按管径的大小、管段长度、管段自重选择具备一定安全系数的吊车配合下管，吊具用加强帆布吊带，以保护防腐绝缘。是什么意思？

According to diameter size, pipe length, pipe weight options have certain safety factor under the control of the crane with, strengthen canvas sling with a spreader to protect the anti-corrosion insulation.

The tube diameter of the pipe length, pipe size, paragraph 6.7.5.2.8 themselves with a choice of cable car tie in with the next pipe, cable-use canvas harnesses, strengthening protection for Corrosion protective insulation.

According to the caliber size, the length of pipe length, the length of pipe dead weight choice has under certain safety coefficient crane coordination to manage, the hoisting mechanisms with the enhancement canvas suspenders, protect the anticorrosion insulation.

Pipe diameter size, the length of the pipe segment, self-select the pipe segment with a certain degree of safety factor of the cable car, with the tube, sling in enhanced canvas strap to protect anticorrosion insulation.

According to diameter size, pipe length, pipe weight options have certain safety factor under the control of the crane with, strengthen canvas sling with a spreader to protect the anti-corrosion insulation.