我打算送给她一枚白金戒指.I'll give her a platinum ring.白金的价值高于黄金.Platinum exceeds gold in value.白金汉认为在非饱和水流体系和其他水流系之间的势有相似性.Buckingham recognized the analogy between potentials in unsaturated - flow systems and in other flow sy...
Stubbs is the soul of punctuality, and efficiency.斯塔布思是个最准时, 最干练的人.I normally never write into magazines but Mr Stubbs has finally crossed the line.我向来不给杂志写信，但是斯塔布斯先生最后做得太过火了。Notable players include: Huston Street, Kyle ...
在二体假设下, 推导了椭圆轨道上相对运动方程的近似形式.In the two - body case, the approximate equations of relative motion on elliptic orbits are derived.研究了真空熔铸法制备的锰白铜基铸造碳化铬复合材料的二体磨料磨损机理.The abrasion wear mechanism of Mn copper - nickel alloy ma...