n.量角器,分度规;
例句:
I can't find my protractor.
我找不到我的半圆仪了.
Step 3 : Use the hole punch to make a hole through the protractor.
步骤 三: 用打洞器在量角器上打一个洞.
It enables to produce various kinds of precision mechanical, electronic digital protractor and length measuring tools.
能生产各种精密的机械类和数显类角度量具, 长度量具等.