N° 513
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检测塑料盒上的颜色标记 应能在一个白色塑料盒的波纹状表面上检测出一个绿色的颜色标记。在此注意,该绿色标记局部有刮痕。
Color mark detection on a plastic cartridge
A green color mark should be detected on a corrugated white plastic cartridge. It has to be taken into account, that the color mark can be partly scratched.
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