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BEVEL PROTRACTOR: a tool for measuring an Angle or marking angles.
量角器：一种可以测量和标记角度的工具。
youdao
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Shown here with a wooden handle. The bevel is set from a protractor.
这一款有一个木把手，斜角要卡在量角器上。
youdao
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Shown here with a wooden handle. The bevel is set from a protractor.
这一款有一个木把手，斜角要卡在量角器上。
youdao