用mtDNA序列探讨羚牛亚种分类 ( 偶蹄目: 牛科 )SUBSPECIFIC TAXONOMY OF TAKIN BASED ON mtDNA SEQUENCES ( ARTIODACTYLA: BOVIDAE )剑羚属于牛科的动物, 双脚纤细,适宜在平野上奔跑跳跃.The Oryx the buffalo family. With slender legs the athletes the fields the terraces....
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...
These front-line defences are backed up by armoured units in reserve.前线的防务得到后备装甲部队的支援。There were armoured personnel carriers and tanks on the streets.街上有装甲运兵车和坦克。German armoured divisions pierced the Russian lines.德国装甲师突...
I shall defer replying till I hear from home.我将等接到家信以后再给你答复.We will defer to whatever the committee decides.我们遵从委员会作出的任何决定.Let's defer the decision for a few weeks.咱们延缓几个礼拜再做决定吧....