1)multi-stage rocket多级火箭
1.In this paper from analysis for the expressions of characteristic velocity for multi-stage rocket,it point out the consistency for the question for payload s lightened and the question for the fewest fewest propellant plan.通过对串联型多级火箭的特征速度表达式的仔细分析,指出当多级火箭的载荷减小时,如何重新最佳地分配各级推进剂的量以达到原来的速度要求。
2.Finally the difference of dynamic charac-ter between the multi-stage rocket of series and the parallel type is pointed o.带一组助推火箭的三级火箭(或航天飞机),当这种并(串)联型多级火箭的各级有效喷速依次递增时,求出了其最大速度值的变化规律;此时最大速度方案等一系列问题也被同时解决了。
3.In this paper, taking a three-stage rocket of parallel type as an example, the optimization rule for the multi-stage rocket of parallel type in the design process is given.以带两组助推火箭的一级火箭为例,给出设计中的带多组助推火箭的多级火箭的最优化准则;另外,对各组(级)火箭喷气速度相等这种情况下的已制造成型的带多组助推火箭的多级火箭,给出了最佳点火次序。
英文短句/例句
1.Rockets with more than one stage are called step rockets.多于一级的火箭称为多级火箭。
2.the first stage of a multistage rocket.多级火箭的早期阶段。
3.As the step rocket goes up, some of the stages at the side fall away.当多级火箭上升时，边上的几级火箭就脱落了。
4.These were rockets with more than one engine.多级火箭是装有一台以上发动机的火箭。
5.One of the ways to make step rockets is to put the stages side by side by side at the bottom.制造多级火箭的一种方法是把各级火箭并排放在底部。
6.At the sound of the pistol, the crew got off excellently.多级火箭的最大级给出的第一次大推动，使得各级火箭全部离开地面。
7.These are two ways to make step rockets, one is to put the stages one on top lr the other.有两种制造多级火箭的方法，一种是把一级放在另一级的项上。
8.The primary stage of a multistage rocket that provides the main thrust for launch, liftoff, and initial flight.助推器多级火箭的第一级，为发射、升空和最初飞行提供主要推力
9.LINEARIZED MASS EQUATION FOR MULTI-STAGE VEHICLE WITH SERIES OR PARALLEL PROPULSION SYSTEM串联与并联推进多级运载火箭线性化质量方程
10.dual thrust rocket engine双级推力火箭发动机
11.timing of stage separating火箭级分离程序定时
12.The second rocket has divorced itself from the first spent rocket第二级火箭已经脱离已燃尽的第一级火箭。
13.Design and optimization of multi-stage solid launch rocket based on integrated stage concept基于整体级概念的多级固体运载火箭设计与优化
14.single-burn ascent单级点火上升,用单级火箭送上轨道
15.The rocket rises and we can see the second stage ignite.火箭升高了，我们可以看到二级点火。
16.ABRV (Advanced Ballistic Re-entry Vehicle)高级弹道重返大气层运载火箭
17.Basic parameters analysis of first stage engine system for heavy lift vehicle重型火箭下面级发动机基本参数分析
18.The first-stage vehicle is used to launch the rocket and is then jettisoned in the upper atmosphere.第一级运载火箭是用来发射火箭的, 进入高层大气後即抛掉.
相关短句/例句
multistage rocket多级火箭
3)Multistage launch vehicle多级运载火箭
4)second stage engine(多级火箭)第二级火箭发动机[火]
5)two-stage rocket二级火箭
1.On the optimum mass ratios of two-stage rocket in the practical permissible region,we get the result s analytic expression.本文考虑二级火箭在实际允许区域内的最佳质量比问题,得到解的解析表达式。
6)two-order rocket两级火箭
1.Discussed the formula in references[1～2]for calculating the maximum speed of a two-order rocket about how to distribute the rocket mass,pointed out their defaults.本文对文献[1～2]给出的使两级火箭速度最大的质量分配计算公式进行了讨论,指出其中存在的问题,并推导了精确的计算公式。
延伸阅读
固液混合火箭推进剂(见火箭推进剂)固液混合火箭推进剂(见火箭推进剂)solid-liguid hybrid rocket propellant guye hunhe huoiian tui)in)i固液混合火箭推进剂(s olid一Iiguid hy-brid rocket proPellant)见火箭推讲齐，}_
