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- The ballistic parameters of airborne weapons are necessary to weapon simulation and the design of fire control system,which are difficult to obtain through traditional methods. 通过传统的计算方法难以得到航空武器系统弹道参数,为此提出一种基于蚁群算法的航空武器气动参数辨识算法。
- the ballistic parameter 弹道参数
- This azimuth motion is known as the ballistic deflection error. 这种绕方位轴的运动称为冲击偏差。
- Special adaptations are represented by the ballistic devices of the autochors. 特殊适应是以自播植物的弹射为代表的。
- In addition,increasing the ballistic work can aggravate the fatigue wear. 此外,冲击功的提高使疲劳磨损加重,磨损质量损失均有所增加。
- exterior ballistic parameter measurement 外弹道参数测试
- Measurement error from the photoelectric theodolite is the main error in the ballistic trajectory measurement. 光电经纬仪测量元素误差是外弹道测量中最主要的误差源。
- Speaking of the benefits of using the ballistic missiles, Younger said that the speed of these missiles could reach faraway targets. 杨格说，使用弹道飞弹的好处，这种飞弹的速度可以到达很远的目标。
- The ballistic logo with red curves symbolizes the dynamic business world which represents IPMs quality service is compatible to world-class standard. 由红色波浪线条组成的球体徽号代表不断转动的世界,象徵国际物业管理的优质管理与世界级标准接轨。
- Boost-phase intercept requires disabling the ballistic missile in the first few minutes of its flight, while it is still ascending. 加力阶段的拦截架构，必须在弹道飞弹发射数分钟之内，也就是飞弹仍在上升时，就将飞弹摧毁。
- The ballistic missile launched on fixed base can make use of triaxial gyro platform compass system to realize all - azimuth self - alignment. 固定基座发射的弹道式导弹,可以利用三轴陀螺平台罗盘系统来实现全方位自对准。
- Aiming at geosynchronous orbit infrared detection system,the infrared detection performance of the ballistic missile plume is analyzed. 针对高轨道红外探测系统,分析了弹道导弹尾焰的红外探测性能。
- It is one of the important factors in fuse safety analysis whether tremendous change of the ballistic spring force occurs or not at high speed. 摘要弹道簧抗力在引信高速旋转下是否发生剧烈变化是引信安全性分析的重要因素之一。
- The ballistic performance has been improved to reach the index demand by the adjustments of 7A52 Al alloy composition and heat treatment. 通过对7A52铝合金成分与热处理工艺设计调整,提高了抗弹性能,达到了防弹衣指标要求,并投入了小批量生产,现已装备应
- Coupling the ballistic trajectory and the air force,the dynamic stability of the connected double-warhead reentry is analyzed. 依据六自由度弹道方程，建立了双弹头牵连体再入的动力学模型，利用弹道与气动力的耦合，初步分析了双弹头牵连体再入的动稳定特性。
- Using the Doppler radar s high precision velocity information,the ballistic coefficient s characteristic of reentry process is emulated and researched. 利用多普勒雷达的高精度测速信息,针对弹道导弹的再入过程,对弹道系数进行了仿真研究,分析了雷达的测量精度对弹道系数估计误差的影响。
- All the rockets ever assembled-the fireworks skyrocket, the ballistic missile, the big research rocket, the newest space rocket-have one thing in common. 过去制成的所有火箭，不论是花炮，弹道导弹，巨大的科研火箭，还是最新的宇宙火箭，它们都有一个共同点。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The curtain was rung down in that phase of history, at least, by the sudden invention of the hydrogen bomb, of the ballistic missile and ofrocketsthatcan be aimed to hit the moon. 至少由于氢弹、弹道导弹和登月火箭出人意料地发明，那个历史时期宣告结束了。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
