It is an established convention to speak of the fixed stars as a standard unaccelerated reference frame .
把固定的成是标准的非加速参照系,这是一种已确立的习惯。
It is an established convention to speak of the fixed stars as a standard unaccelerated reference frame .
把固定的成是标准的非加速参照系,这是一种已确立的习惯。
明:以上例句、词性分类均由互联网资源自动生成,部分人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。