例句與造句

1. By studying the periods of mutual rotations of the binary systems , we can find the masses and sizes of the component stars
   只要研究雙星的互繞周期，便可以計(jì)算出子星的質(zhì)量及大小。
2. In this area , visitors can select videodisc programmes on stellar evolution and star systems . they can also visualize the spatial relationship between component stars of such famous celestial configurations as the orion and the big dipper
   觀眾可選看關(guān)于恒星演化和恒星系統(tǒng)的影碟節(jié)目，他們亦可看到著名的獵戶座和北斗七星內(nèi)各星體之間的空間關(guān)系。
3. It's difficult to find component star in a sentence. 用component star造句挺難的