If there is any mistake in the position, dimension of height mark or reference line of the construction, the contractor shall amended it during construction.
在工程施工过程中，如果工程的位置、标高尺寸或准线出现错误，承包商应修正上述错误。
2
Drawing the mechanical engineering drawing usually need to mark the dimension tolerance of the parts.
绘制机械工程图经常要标注零件的尺寸公差。
3
The prepared casting organic glass plate has high heat-resistance temperature, high strength, silver mark resistance, stable dimension and high light transmission.