1. While the electron intercalates and deintercalates easily due to the smaller energy that orbit leaps from the HOMO orbit to the LUMO orbit. 最高占有轨道（HOMO）到最低空轨道（LUMO）的跃迁能很小， 电子较易进行嵌入和脱出。
2. The orbit of Halley's Comet prolate very much on point beyond the orbit of Neptune, but a recent point in the orbit of Venus. 哈雷彗星的轨道非常扁长，远日点超出海王星轨道，近日点却在金星轨道内。
3. In automatic mechanism selection system based on orbit, orbit characteristics and dimension parameters of key orbit segments are momentous for selecting mechanisms. 基于轨迹的机构自动化选型系统中，轨迹特征及关键轨迹段尺寸参数是选择机构的重要依据。
4. The orbit of Halley's Comet prolate very much on point beyond the orbit of Neptune, but a recent point in the orbit of Venus. 哈雷彗星的轨道非常扁长，远日点超出海王星轨道，近日点却在金星轨道内。
5. the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; （天文学）从天顶交叉口向西顺着天赤道测量的一个角距离；
