例句與造句

1. 2 . systems analyzed on the design principle of near - earth orbit , regression orbit , stationary orbit , critical orbit and construction orbit . base on this , a orbit design model is given
   2 、系統(tǒng)研究了近地軌道、太陽同步軌道、回歸軌道、靜止軌道、臨界和凍結(jié)軌道的設(shè)計(jì)原理，在此基礎(chǔ)上，建立了軌道設(shè)計(jì)模型。
2. It's difficult to find regression orbit in a sentence. 用regression orbit造句挺難的