flat sawing 中文意思是什麼
flat sawing
解釋
平鋸法-
Railway fixed equipment. sawing and drilling of flat - bottom rails of types superior or equal to 26 kg m, of 60 g, 70 g grooved rails and their fischplates
鐵路固定設備.大於kg m的g g形平底軌及其魚尾板的切割和鉆孔
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