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...
As far as I'm concerned the officials incited the fight.在我看来，是官员们煽动了这场争斗。There are pine trees as far as the eye can see.放眼望去，除了松树还是松树。It only lasted a couple of years, as far as I know.据我所知，它仅仅维持了两三年。...
下标O和W分别表示属于未风化和已风化的状态.The subscript O and W identify the unweathered and weathered states.这是在风化的灰岩露头上用较小的AB踞 ( 40m ) 记录的.This recording was taken on weathered outcropping limestone with a relatively short AB ( 40 m ).然而,...