例句與造句

1. These are the proper orbital elements.
2. A Mars-crosser asteroid 132 Aethra is the lowest numbered asteroid to not have any proper orbital elements.
3. The asteroids of this family share similar proper orbital elements, which may indicate a common origin through an asteroid collision some time in the past.
4. In the case of minor planets, a system of proper orbital elements has been devised to enable representation of the most important aspects of their orbits.
5. At present the most prominent use of proper orbital elements is in the study of asteroid families, following in the footsteps of the pioneering work of Hirayama.
6. It's difficult to find proper orbital elements in a sentence. 用proper orbital elements造句挺難的
7. Strictly speaking, families and their membership are identified by analysing the so-called proper orbital elements rather than the current osculating orbital elements, which regularly fluctuate on timescales of tens of thousands of years.
8. An "'asteroid family "'is a population of asteroids that share similar proper orbital elements, such as semimajor axis, asteroid group whose members, while sharing some broad orbital characteristics, may be otherwise unrelated to each other.