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-1直尺 / -1ruler

-1直尺
-1直尺

There’re some problems with ordinary plastic rulers.
1.After long time using, the worn corners of ruler may affect observation and using; 2.Because the scale “0” is not marked at the top of rulers, some depths cannot be measured; 3. Rulers are easily to be soiled by ink of ballpoint pens during the using.

After improved.
1.The scale “-1” was added at the top of the ruler to prevent unclear scale caused by wearing, and in the same time, the ruler is capable to measure the depth. 2. There’s a raised line at the bottom of the ruler to prevent the ruler from being soiled by ink of ballpoint pen, and strengthened the ruler hardness.

University

Tianjin Academy Of Fine Arts

Tianjin Academy Of Fine Arts
TianJin, China

Mengqian Xie,
Tianjin Academy Of Fine Arts