主绳 meaning in English

main rope
working rope

New method of replacing main rope in ground - mounted and multi - rope hoist
落地式多绳提升机更换主绳的新方法
1 main rope must be correctly selected and mixed use of rope is prohibited
1必须正确选用主绳,严禁混用。
The construction experience of changing main ropes for multi - rope friction hoist
更换多绳摩擦式提升机主绳的施工经验
Applicable main rope
适用主绳mm
6 rappel / abseil station components though which the rope is threaded should be replaceable
6下降点中与主绳摩擦的部件必须是可替换的。