roof anchorage 中文意思是什麼
roof anchorage
解釋
頂部固定-
Power current overhead lines, rated voltage below 1 kv ; roof anchorage, compilation, piece parts
額定電壓1000v以下架空電力線路用屋頂拉桿.零件匯編 -
Application of anchorage cable supporting technology in roadway with coal seam roof
錨桿錨索聯合支護在大斷面巷道中的應用
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