曾经有人认为,这些基质颗粒可能是原始的星云尘埃,即形成陨石球粒及其内含物的物质。
At one time it was thought that these matrix grains might be pristine nebular dust, the sort of stuff from which chondrules and inclusions were made.
方法制造兔右股骨粉碎性骨折的动物模型,a组用异体脱钙骨基质颗粒复合骨水泥并表面贴附自体骨渣进行修复;
Methods Forty rabbits were involved in this experiment. Animal model of right femur comminuted fracture was made and randomly divided into four groups.
阿伦德陨星里的陨石球粒和内含物是由球粒陨石基质结合到一起的;这是一种细粒混合物,主要包括铁颗粒和硫化铁的硅酸盐矿物。
Chondrules and inclusions in Allende are held together by the chondrite matrix, a mixture of fine-grained, mostly silicate minerals that also includes grains of iron metal and iron sulfide.
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