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- outer orbital mechanism 外轨机理
- Free radical are a highly reactive group of atoms, molecules or radicals, which carry unpaired electron in outer orbital. 外层轨道上有单个不配对价电子的原子、原子团或分子。
- An electron in an atom's outer orbital can take on energy (letting it jump to a higher band) by absorbing a photon or can release energy (dropping back down) by emitting one. 而位于原子较外轨道的电子可吸收光子取得能量（藉此跳到较高的能带），或发射光子释出能量（掉回原来的能带）。
- outer orbital coordination compound 外轨配合物
- To go faster, slow down. Everybody who knows about orbital mechanics understands that. 要想更快,先慢下来。了解轨道力学的人都知道这个道理。
- But they were a little sad,because it was so long between times that they got to be near each other,what with orbital mechanics being what they are and all. 但是它们也有一点点的伤感，因为每颗星星都有各自运行的轨道，相互靠近需要太长太长的时间。
- Electrons closer to the nucleus are held more tightly than those in the outer orbits. 靠近原子核的电子比外层轨道上的电子结合得紧。
- Stars would have large constant mass, yet they were not following the rules of orbital mechanics. 恒星应该有更大的恒定质量，然而它们却不依循轨道力学的规律。
- Applications to aerospace engineering are discussed, including introductory topics in orbital mechanics, flight dynamics, inertial navigation and attitude dynamics. 亦将讨论动力学在航天工程上的应用，包含轨道力学，飞行力学，惯性导航与姿态动力学。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- An outer coat of glaze on a piece of pottery. 外层釉陶器釉面上的第二层釉
- You operate the mechanism by winding this handle. 操纵这台机器要转动这个把手。
- The outer walls of the building were painted blue. 这座建筑的外墙被漆成了蓝色。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- The watch has delicate mechanism. 这块表有精细的机械装置。
- Let's examine into the basic mechanism involved. 让我们把有关的基本结构搞搞清楚。
- A loose outer garment, such as a cape. 披风，斗篷一种宽松的外衣，例如斗篷
- Has anybody ever seen any beings from outer space? 有人见到过外星人吗?
- The two modules docked in outer space. 两个飞行舱在外层空间对接。
