piping and instrument drawing 管道及仪表流程图
drawing instrument 绘图用具 ; 绘图仪器
precision drawing instrument set 成套精密绘图仪器
an instrument for drawing circles 圆规
instrument for drawing circles 画圆形的工具
drawing instrument assembler 绘图仪器装配工
perspective drawing instrument 透视绘图仪
drawing-instrument 绘图仪器
Keep files, drawing and measuring instrument.
保存文件，图纸和测量仪器。
Whether it's writing, drawing, playing sports, or learning to play an instrument, find something that makes you feel alive.
无论是写作、画画、运动还是学习一门乐器，去找一样激发你热情的事情做。
The instrument to draw hyperbola has great significance for teaching and engineering drawing.
绘制双曲线的仪器在教学及工程绘图方面具有实际意义。
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