Crystals having this property are said to be doubly refracting , or birefringent.具有这种性质的晶体叫做双折射晶体.Such substances are optically anisotropic and birefringent.这种材料是光学各向异性的,因而是双折射晶体.The stressmeter consists of a short solid...
The drawing capstans are of step - cone structure, the surface of which is spray - coated with tungsten carbide.鼓轮采用塔轮式结构, 鼓轮圈表面炭化鸽喷镀.Inclined haul - off capstans of 2500 double haul - off unit ensure the stranded wire r...
Nevertheless, she is always optimistic about the possibilities and can work her charm on the disenchanted...虽然如此，她总是乐观地抱持希望，并能深深地感染那些心灰意冷的人。The harshness of everyday reality disenchanted him of his idealistic hopes.冷酷的日常...
Docytes are formed during intrauterine life.卵母细胞是在胚胎时期形成的.Intrauterine wall, jewels set into flowers Jia Hui, glamorous.宫内墙上, 珠宝镶成繁花佳卉, 光彩照人.Intrauterine devices ( IUDs ) are safe and effective forms of long - term rever...