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...
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....
An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles.等边三角形不能分成有限多个不全等的等边三角形.It passes through the N atom and through the center of the equilateral triangle.它通过N原子及三个H原子组成的等边三角形...