acce ories for steel railaccessories for steel rail钢轨: rail; metals; steel rail; ra ...配件: fittings of a machine; parts ...钢轨与配件轨料: rails and accessories钢轨: rail; metals; steel rail; railroad rail◇钢轨间隙 dilatation joint; 钢轨联接板 joint bar; splice bar; 钢轨起重器 track (rail) jack; 钢轨牵板 tie plate; 钢轨钳 rail tongs; 钢轨探伤车 rail-defect detector car; 钢轨探伤器 rail-defect detector; 钢轨探伤仪 rail flaw detector内轨配合物: inner orbital coordination compound下载手机词典可随时随地查词查翻译
