... two pipe system 双管供暖系统 two pipe upfeed heating system 双管上分供暖系统 two point depression 二点弯折 ...
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two point depression WESTBANK 二点弯折
Depression two-point 二点弯折
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Compared to the new wheel tread, the worn tread is easy to form two-point contact nearby the depression area of the nominal diameter position of wheel tread.
与新用车轮踏面相比，测试得到的磨耗后车轮踏面在其名义直径位置凹陷区域附近容易形成踏面两点接触。
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