那里的尺寸系列包含三种符号。
There the dimensional series are indicated by a combination of three symbols.
技术制图。几何形位公差的符号。比例和尺寸。
Technical drawings. Symbols for geometrical tolerancing. Proportions and dimensions.
并能正确标注尺寸及加工表面符号,公差与配合。
Learning to mark dimensions, manufacturing surface symbols tolerance and fittings correctly.
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