名词
中文翻译：加硬角度
同义词：
['hardening angle', 'hardening angle', 'stiffening angle']
例句：
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1. Thenew design has a stiffening angle of 30 degrees.
新设计有一个30度的加硬角度。
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2. The material was subjected to a stiffening angle of 45 degrees.
该材料经受了一个45度的加硬角度处理。
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3.The machine's mechanism is designed to have a stiffening angle that prevents wear and tear.
这台机器的机制被设计成具有一个防止磨损和撕裂的加硬角度。