1)choked[英][t???kt][美][t?okt]壅塞
1.The altitude characteristics and velocity characteristics of three types of solid ducted rocket, which are choked solid ramrocket with fixed mass flow rate of fuelrich gas generator, unchoked one and the one working under fixed mass ratio of air to fuel, were numerically studied.通过数值计算 ,分析了燃气流量固定的壅塞式固体火箭冲压发动机、等空燃比工作的固体火箭冲压发动机和非壅塞固体火箭冲压发动机的高度特性和速度特性。
英文短句/例句
1.Grease has fouled this drain.油污使这条下水道壅塞了。
2.Elimination of Superfluity --An Issue Concerning the Development of the Art of Poetry during the Southern Dynasty and the Tang Dynasty;壅塞的清除——南朝至唐代诗歌艺术的发展一题
3.Relationship between choking flow characteristics and condensing pressure in electronic expansion valve电子膨胀阀壅塞特性与冷凝压力的关系
4.Clinical Observation on Phlegm Turbidity and Obstruction Syndrome by the Classical Prescription of Zexie Soup经方泽泻汤加味治疗胸痹痰浊壅塞证临床观察
5.Aries people are subject to headaches, including migraines, head congestion, and sinus conditions.白羊星座经常头疼,像经常发生偏头痛,顶头壅塞,和静脉窦。
6.GEOMETRIC TOPOLOGICAL ANALYSIS OF TWO-PHASE FLOW AND AN INVESTIGATION OF THE MATHEMATICAL CRITERION FOR CHOKING两相流动解的几何拓扑分析及壅塞流动数学判据的探讨
7.Choking phenomenon of gas particle flow and its application in PCI of BF气粉两相流壅塞现象的实验研究及在高炉喷煤中的应用
8.In large American cities so many people are in a hurry and drive automobiles that traffic in the congested streets goes into slow motion.在美国的大城市中，许多人匆匆忙忙地驱车来到交通壅塞的街道上，结果是加入了纡缓的车流；
9.The present shortage of radio spectrum results in large part from the cost and performance limits of legacy hardware established during the past century.目前无线电频谱壅塞的现象，大多起因于上个世纪制造的老式硬体设备在成本与效能上受到限制。
10.Filling and Blocking up: the Existential Foundation of the Chinese Autocracy Stated by Kang Youwei;塞壅:康有为论中国专制的生存根基
11.Analysis of Causes to Dammed Water in Little-North-Stem of the Yellow River in 1996 Ice Flood1996年凌汛黄河小北干流冰塞壅水成因分析
12.Earth up the roots of a newly-planted tree壅土覆盖新栽树的根部
13.If small leaks aren't plugged up in time, they will become streams涓涓不壅,终为江河
14.the azygous muscle of the uvula.悬壅垂的非对偶的肌肉。
15.He earthed up the roots of the newly-planted shrub他给新种植的灌木根部壅了土。
16.The Biological Foundation and Effectiveness of "Phlegm Accumulation in the Uterus"(6);“痰壅胞宫”生物学基础及其效应（6）
17.The Biological Basis and Complications of Phlegm Affected Baogong (5);“痰壅胞宫”的生物学基础及其效应（5）
18.The Biological Basis and Complications of Phlegm Affected Baogong (4);“痰壅胞宫”的生物学基础及其效应（4）
相关短句/例句
choking[英]['t??uki?][美]['t?ok??]壅塞
1.Relationship between choking flow characteristics and condensing pressure in electronic expansion valve电子膨胀阀壅塞特性与冷凝压力的关系
3)filling and blocking up塞壅
4)choking phenomenon壅塞现象
1.Based on the forming principle of choking phenomenon,an approach is proposed to measure the sonic velocity of air-powder two-phase flow.基于壅塞现象原理,提出了一种测量气粉两相流音速的新方法。
5)choking flow壅塞流动
1.The experimental results showed that the air-coal flow will become choking flow in all jet pipes if connecting a set of venturi.结果表明,在现有高炉喷煤系统的各输送支管前安装一组具有相同几何尺寸的“喉形喷管”并满足适当压力条件时,两相流将在各喷管内发生壅塞流动。
6)unchoked非壅塞
1.Study on secondary combustion chamber air-inlet scheme of unchoked solid rocket ramjet;非壅塞固体火箭冲压发动机二次燃烧室进气方案研究
2.Numerical computation of after burner flow in unchoked solid rocket ramjet;非壅塞固体火箭冲压发动机补燃室内流场数值模拟研究
3.The altitude characteristics and velocity characteristics of three types of solid ducted rocket, which are choked solid ramrocket with fixed mass flow rate of fuelrich gas generator, unchoked one and the one working under fixed mass ratio of air to fuel, were numerically studied.通过数值计算 ,分析了燃气流量固定的壅塞式固体火箭冲压发动机、等空燃比工作的固体火箭冲压发动机和非壅塞固体火箭冲压发动机的高度特性和速度特性。
延伸阅读
壅塞 管道中某一截面处的流速达到声速时所发生的一种流动现象,其表现为：不论管道出口外压强如何降低,声速截面前的流速、压强等都不再发生变化，相应地流量也保持不变。壅塞有许多种，常见的有超声速风洞（见风洞）起动壅塞、飞机进气道壅塞、摩擦管壅塞和加热管壅塞等。 超声速风洞的壅塞 这种壅塞常发生在风洞第二喉道截面不够大的情况下。 图1为超声速风洞出现壅塞示意图。超声速风洞左端为一拉瓦尔管喉道，中部为实验段，右端为第二喉道。风洞起动时入口和出口的压强比逐渐增大，洞中流速随之增大，当拉瓦尔管喉道截面处的流速达到声速时，它的下游出现一段超声速流动区和起动激波（图1a）。随着压强比增大，起动激波往下游移动。对于正常的起动过程，当压强比达到某一值时，起动激波通过实验段，就完成了起动过程。若第二喉道截面不够大，在起动激波还未通过实验段时第二喉道截面处流速就达到了声速（图lb)，这时，无论压强比如何增大,起动激波也不能再往下游移动，实验段气流不能达到超声速，便出现起动壅塞的现象。如果实验模型太大，它与壁面之间的通道太小，其作用类似第二喉道，也会造成壅塞。为了避免壅塞，第二喉道横截面积应足够大。 飞机进气道中的壅塞 在进气道远前方气流马赫数∞＜1时,进气道前方气流速度增大，进口内喉道处的流速增大，流量增加；当喉道处马赫数0=1时，进气道前方气流速度再增大，流量也不再增加，只是在喉道后出现超声速流和激波(图2a)。在远前方气流马赫数∞＞1时,超声速气流在进口前不受任何扰动，直接流入进气道(图2b)。在喉道面积足够大，进入的全部气体都能通过时，进气道不壅塞。若喉道面积太小，能够通过的流量小于直接进入的流量，喉道壅塞，喉道前气体堆积,压强升高,在进口前形成一道离体激波,一部分多余气流溢出口外,喉道后出现超声速区和激波（图2c）。壅塞使飞机所受阻力大为增加，发动机的推力显著减小。 上述壅塞都与喉道的存在有关，称为几何壅塞。在等截面的管道中，摩擦作用和加热作用，也会使下游截面可能通过的最大流量减小，当某个截面处达到量大流量时就会发生壅塞，这分别称为摩擦壅塞和加热壅塞。实际管道中的壅塞往往是几何、摩擦和加热共同作用的结果。
