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- Plasma in space are collision free. 空间中等离子体是无碰撞的。
- Abstract: Research for bow shock due to secondary gas injection was developed with different points of injection,Mach numbers and jet angles. 文摘:研究了不同喷射位置、喷射马赫数和喷射角度的气体二次喷射混合流场的弓形激波形状。
- The small, arcing, graceful structure just above and left of center is LL Ori's cosmic bow shock, measuring about half a light-year across. 在图中左上方的一个细小的，呈弧形结构的是猎户座LL星的船头震波，经测量横跨大约有半光年。
- TDMA-based MAC protocol is inherently collision free but it has poor scalability. 基于TDMA的MAC协议具有固有的节能特性;但是其可扩展性较差.
- This is because it is at the cusp that magnetic field-lines stream down towards the ground,acting as paths for electrons and protons that have slipped past the bow shock. 这是因为磁场线圈是在尖端的地方流向地面的，这些线圈的作用是为那些流失并超越弓形波的电子与质子提供通道。
- The positions at which the spacecraft first crossed the "bow shock" of the magnetospheric interaction with the solar wind, passed closest approach to the planet, and crossed the outbound bow-shock crossing are indicated. 阵地上飞船首次跨过"弓形激波"的磁层与太阳风的相互作用，通过最亲密的态度来处理这个星球，并穿越外弓形激波两边的表示。
- With limited support of human, SUPER-PLUS scans the cluttered environment with a wrist-mounted laser distance sensor and plans the manipulator a collision free path to fetch the bomb. 排爆机器人SUPER-PLUS在有限人参与下，利用手腕装载的激光测距传感器，扫描爆炸物周围的障碍环境，规划出一条无碰轨迹，实现爆炸物自主抓取。
- A METHOD OF COLLISION FREE PLANNING FOR MULTI-ROBOT 一种多移动机器人避碰规划方法
- They are slamming into neighboring gas to create a pair of bow shocks on either side of the globule. 它们撞进周围的气体在球状体两边制造了一对弓形击波。
- The smiley-shaped bow shocks curve away from the stellar winds of the central massive stars. 笑口状的弓形激波因躲开来自中心巨型恒星的星风而发生弯曲。
- The picture provides some ofthe best examples yet of the ripples of gas, or bow shocks, that canform around stars in choppy cosmic waters. 图片提供了一些最好的例子，在还没有形成涟漪的气体，或低头的冲击，就可以形成围绕恒星的宇宙震荡水域。
- Three of these bow shocks are nestled in the upper left side of the central cavity but are difficult to spot in this view. 有三条弓形激波坐落于中心空穴的左上方，但是在该图像中不易看出。
- He pushed hard on the brake pedal to avoid a collision. 他使劲踩下煞车踏板以避免撞车。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- He was badly concussed in the collision. 在猛烈碰撞时他的脑部受到严重损伤。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- The collision between the ships was caused by fog. 船只相撞事件因雾造成。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- The nearside wing was damaged in the collision. 汽车碰撞时左侧的翼子板撞坏了。
- The two parties are on a collision course. 这两个政党正朝著导致冲突的方向发展。
