butt turning 中文意思是什麼
butt turning
解釋
頂岸掉頭-
Therefore, the multiport - butt of 3 - d truss, as well as the stability of turning over 2 - d truss were the difficulties of the lifting project
空間立體桁架的多對口對接、平面桁架的翻身過程穩定性是該分項工程的重點和難點。
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