As the nuclear burning moves outward to the fresh material in a shell surrounding the core the star bloats into a so-called red giant.
当核燃烧向外进行到核心周边壳层的新物质时，恒星会膨胀成所谓的红巨星。
As the nuclear burning moves outward to the fresh material in a shell surrounding the core, the star bloats into a so-called red giant.
当核燃烧向外进行到核心周边壳层的新物质时，恒星会膨胀成所谓的红巨星。
Because water has strong causticity, the shell and core of the filter are required to be made of resistant causticity material.
由于水有强腐蚀性，要求过滤器的壳体及滤芯使用抗腐蚀的材料。
应用推荐