绿野 ... half clove-hitch belay/半瓣结确保法/ half ring bend/半圆结/ half-mast belay/半柱确保/ ...
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短语
旋圆加半结
round turn and half hitch
圆材加半结
timber and half hitch
半圆型缺陷地结构
Semicircle Defected Ground Structure
;
S-DGS
旋圆两半结
roundturnandtwohalfhitch
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