工程图学专业词汇英语翻译
环，圈 ring环规 ring gage环头弹簧圆规 ring head bow拋物线纵距 rise of parabola升坡 rise of slope升流图(电)升位图(管路) riser diagram铆钉符号 rivet symbol搭铆接合 riveted lap joint加铆站缝 riveted standing seam绞 RM(ream)道路 road洛氏硬度 Rockwell hardness(HRC)标尺 rod辊 ROLLED辊轧型材 rolled section轧制型材 rolled shape轧制钢 rolled steel滚圆 rolling circle弹簧销 rollpin罗马体字法 Roman letter屋顶 roof屋顶花园 roof garden屋顶排水沟，屋顶排水管 roof gutter屋瓦 roof tile屋面，屋面料 roofing 语际翻译 版权所有
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