Some common drawing mistakes such as in representation of drawing, utilization of line styles, dimension label, description of section lines and technical structures are analyzed.
从图形表达、线型运用、尺寸标注、剖面线的表述和工艺结构等方面，剖析了常见的机械图样错误，并举例进行正误对比，提出了改进措施。
Some common drawing mistakes such as in representation of drawing, utilization of line styles, dimension label, description of section lines and technical structures are analyzed.
从图形表达、线型运用、尺寸标注、剖面线的表述和工艺结构等方面，剖析了常见的机械图样错误，并举例进行正误对比，提出了改进措施。
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