例句與造句

1. Either half of the major axis is called a semimajor axis .
   長(zhǎng)軸的每一半叫做半長(zhǎng)軸。
2. Semimajor axis of ellipsoid
   地球長(zhǎng)半軸
3. It's difficult to find semimajor axis in a sentence. 用semimajor axis造句挺難的