East of Paris the German thrust beyond the Seine and the Marne, threatening to turn the Maginot line, appears to have made little progress.
在巴黎东部，德军试图越过塞纳河和马恩河，从后方威胁马其诺防线，但进展有限。
If the parting line cannot be on a single plane, then it is good practice to use symmetry of the design to minimize the side thrust forces.
如果分模面不能在单一平面，利用设计的对称性来减小侧向推力不失为一种好方法。
Rolling theoretical rotation axis line of the inner ring to the center axis line of bearings, thrust bearings on the shaft circle refers to the axis line.
滚动轴承的理论旋转轴心线，对向心轴承即内圈轴心线，对推力轴承则指轴圈轴心线。
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