Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.Authigenic mineral assemblage formed in different ambients is distinct to each other.两种环境下形成的自...
The length of the flagella is about 1.5 times as the cell diameter.两条鞭毛稍不等长,着生于细胞前端,鞭毛长约为细胞直径的1.倍.Microtubules are also used in the construction of centrioles , basal bodies , cilia and flagella.微管还用于建造中心粒,基体, 纤毛和鞭毛.The ...
她用石膏塑造了一座林肯半身像.She made a plaster cast of a bust of Lincoln.我把一块粘土制作成我母亲的半身像。I worked up a lump of clay into a bust of my mother.他的写字台上放着他最喜爱的诗人的半身像.On his desk there stood a bust of his favorite poet....