... 旋盘求积仪 rolling disc planimeter 波状平原 rolling plain 滚轮求积仪 rolling planimeter ...
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An unforested rolling plain 荒野
a rolling plain 绵延起伏的平原
Rolling bearings and plain bearings 滚动轴承和滑动轴承
plain roller rolling 平辊轧制
plain strain rolling 平面应变轧制
Plain four high rolling mill 普通四辊轧机
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