It isn't far from the graceful Circlet asterism in the constellation Pisces.它的不远处,就是带有优雅头箍的双鱼座星群.First, locate the prominent Teapot asterism in the constellation Sagittarius the Archer.首先, 先找出人马座中著名的‘大茶壶’星群.The spac...
The operational principle of digital readout instrument angle measurement is introduced based on the round inductosyn.介绍了圆感应同步器数显表测角系统的工作原理,以及在静态和动态测角方法....
窗帘拉上了一半以遮挡阳光。The curtains were half drawn to cut out the sunlight.普利茅斯海洋研究所的科学家一半有学士学位，另一半则有博士学位。Half of PML's scientists have first degrees, the other half have PhDs.与此同时，黑胶唱片的销售量在1992年下降了一半，只有670万张。Meanwhile, sale...
大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.因此,研究者转向研究缺乏纤毛的突变异种老鼠的细胞.So the researchers turned to mutant mice with cells that lacked cilia.目的了...