气体星团推动原行星向外的推力可能在某些时候强于那些使它向内的推力。

Gas clusters that push the protoplanet outward can sometimes exert stronger forces than those that push inward.

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罗马式教堂延续不变的厚重桶形穹顶，需要加强承重墙以躲避向外的侧向推力。

ROMANESQUE_VAULTING_DESC; Romanesque churches sustained massive barrel vaults, requiring the reinforcement of the load-bearing walls in order to parry the lateral outward thrust.

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This equation is telling you if you compress it, namely if x is negative, F will be then positive, because it's pushing you outwards.

这个方程告诉我们,如果压缩弹簧,即令 x 为负,F 就为正,因为推力的方向向外

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