1) hollow projectile
空心弹体
1.
Normal penetration of tungsten alloy hollow projectiles into steel and concrete targets were performed.
进行了钨合金空心弹体垂直侵彻钢靶板和混凝土靶板的实验。
2) hollow projectile
空心弹丸
1.
Complicated flow structure and aerodynamics characteristic were studied after the flowfield of a hollow projectile was numerically simulated in supersonic condition.
采用隐式有限体积TVD(总变差减小)数值格式,在超声速条件下数值模拟了某空心弹丸绕流流场,系统研究了流场波系结构与空气阻力特性,证实空心弹丸阻力系数比普通弹丸小得多,同时发现发射角度对于空心弹丸的速度降影响不大。
2.
High precision and high resolution implicit finite volume TVD schemes and zonal method are applied to numerically simulate air flowfield of hollow projectiles with different convergence ratio.
应用高精度高分辨率的隐式有限体积TVD格式,结合分区算法,数值模拟了不同收敛面积比的空心弹丸内外流场,系统研究了空心弹丸内外流场的波系结构和阻力特性的有关规律,证实存在使得空心弹丸阻力最小的收敛面积比,表明该方法是空心弹丸阻力特性优化的有效方法。
3) projectile pressure center
弹体压心
1.
First it is dissertated that the position change of the projectile pressure center has different effects on the nominal trajectory of terminal guidance shell and the rocket extended-range trajectory.
首先对比弹体压心位置变化对火箭增程弹道和末制导炮弹名义弹道的不同影响,重点分析弹体压心位置变化对末制导炮弹末导段弹道的影响特点,得出弹体压心位置变化对末导段弹道的捕获域和有效攻击区有着重要影响的结论。
4) quill shaft
弹性空心轴
5) hollow wall
空心墙体
1.
Numerical simulation of summer air conditioning load caused by heat transfer through energy saving hollow walls;
节能空心墙体传热引起的夏季空调负荷的数值计算
2.
Test and analysis of thermal insulation of aluminum foil embellished polyphenylene panel hollow wall;
缀铝箔聚苯板空心墙体保温性能的测试与分析
3.
The polyphony board covered with aluminum foil of hollow wall is a new type of wall which heat insulation of aluminum foil has better heat preservation effect than cubage heat insulation.
缀铝箔聚苯板空心墙体是一种新型的保温墙体 ,其采用的铝箔绝热与容积绝热相比具有较好的保温绝热性能。
6) hollow conductor
空心导体
1.
On the basis of stator hollow conductor layer building in large electric machines,the paper deduces numerical formula for calculating conductor alternating current resistance.
本文在大电机定子空心导体分层的基础上 ,推导了导体交流电阻的数值计算公式。
2.
In order to analyse skin effect of stator hollow conductor in large synchronous machines, the paper proposes a method which separates conductor into many laryers.
为分析大型同步电机空心导体的集肤效应，采用了将导体分层处理的方法。
补充资料：空心弹
空心弹是指弹头为中空圆柱体的一种枪弹。弹头外表面为圆柱体，内有较大的中心通孔，中心孔前部和后部为内锥形，中间为圆柱形。为使弹头在发射过程中能够获得较大的推力并密闭火药气体，空心弹头上需要配置塑料弹托。发射后，弹托与空心弹头分离。空心弹头质量很轻，初速极高，由于飞行阻力特别小，所以存速能力高。美国试验的7.02mm空心弹，弹头质量为1.7—2.13g，弹头长16.51—18.24mm，初速高达1676m/s。破片杀伤弹药
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条