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.通過數值計算 ,分析了燃氣流量固定的壅塞式固體火箭沖壓發動機、等空燃比工作的固體火箭沖壓發動機和非壅塞固體火箭沖壓發動機的高度特性和速度特性。
英文短句/例句
1.Grease has fouled this drain.油污使這條下水道壅塞了。
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——南朝至唐代詩歌藝術的發展一題
3.Relationship between choking flow characteristics and condensing pressure in electronic expansion valve電子膨脹閥壅塞特性與冷凝壓力的關系
4.Clinical Observation on Phlegm Turbidity and Obstruction Syndrome by the Classical Prescription of Zexie Soup經方澤瀉湯加味治療胸痹痰濁壅塞證臨床觀察
5.Aries people are subject to headaches, including migraines, head congestion, and sinus conditions.白羊星座經常頭疼,像經常發生偏頭痛,頂頭壅塞,和靜脈竇。
6.GEOMETRIC TOPOLOGICAL ANALYSIS OF TWO-PHASE FLOW AND AN INVESTIGATION OF THE MATHEMATICAL CRITERION FOR CHOKING兩相流動解的幾何拓撲分析及壅塞流動數學判據的探討
7.Choking phenomenon of gas particle flow and its application in PCI of BF氣粉兩相流壅塞現象的實驗研究及在高爐噴煤中的應用
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.在美國的大城市中，許多人匆匆忙忙地驅車來到交通壅塞的街道上，結果是加入了紆緩的車流；
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.目前無線電頻譜壅塞的現象，大多起因于上個世紀制造的老式硬體設備在成本與效能上受到限制。
10.Filling and Blocking up: the Existential Foundation of the Chinese Autocracy Stated by Kang Youwei;塞壅:康有為論中國專制的生存根基
11.Analysis of Causes to Dammed Water in Little-North-Stem of the Yellow River in 1996 Ice Flood1996年凌汛黃河小北干流冰塞壅水成因分析
12.Earth up the roots of a newly-planted tree壅土覆蓋新栽樹的根部
13.If small leaks aren't plugged up in time, they will become streams涓涓不壅,終為江河
14.the azygous muscle of the uvula.懸壅垂的非對偶的肌肉。
15.He earthed up the roots of the newly-planted shrub他給新種植的灌木根部壅了土。
16.The Biological Foundation and Effectiveness of "Phlegm Accumulation in the Uterus"(6);“痰壅胞宮”生物學基礎及其效應（6）
17.The Biological Basis and Complications of Phlegm Affected Baogong (5);“痰壅胞宮”的生物學基礎及其效應（5）
18.The Biological Basis and Complications of Phlegm Affected Baogong (4);“痰壅胞宮”的生物學基礎及其效應（4）
相關短句/例句
choking[英]['t??uki?][美]['t?ok??]壅塞
1.Relationship between choking flow characteristics and condensing pressure in electronic expansion valve電子膨脹閥壅塞特性與冷凝壓力的關系
3)filling and blocking up塞壅
4)choking phenomenon壅塞現象
1.Based on the forming principle of choking phenomenon,an approach is proposed to measure the sonic velocity of air-powder two-phase flow.基于壅塞現象原理,提出了一種測量氣粉兩相流音速的新方法。
5)choking flow壅塞流動
1.The experimental results showed that the air-coal flow will become choking flow in all jet pipes if connecting a set of venturi.結果表明,在現有高爐噴煤系統的各輸送支管前安裝一組具有相同幾何尺寸的“喉形噴管”并滿足適當壓力條件時,兩相流將在各噴管內發生壅塞流動。
6)unchoked非壅塞
1.Study on secondary combustion chamber air-inlet scheme of unchoked solid rocket ramjet;非壅塞固體火箭沖壓發動機二次燃燒室進氣方案研究
2.Numerical computation of after burner flow in unchoked solid rocket ramjet;非壅塞固體火箭沖壓發動機補燃室內流場數值模擬研究
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.通過數值計算 ,分析了燃氣流量固定的壅塞式固體火箭沖壓發動機、等空燃比工作的固體火箭沖壓發動機和非壅塞固體火箭沖壓發動機的高度特性和速度特性。
延伸閱讀
壅塞 管道中某一截面處的流速達到聲速時所發生的一種流動現象,其表現為：不論管道出口外壓強如何降低,聲速截面前的流速、壓強等都不再發生變化，相應地流量也保持不變。壅塞有許多種，常見的有超聲速風洞（見風洞）起動壅塞、飛機進氣道壅塞、摩擦管壅塞和加熱管壅塞等。 超聲速風洞的壅塞 這種壅塞常發生在風洞第二喉道截面不夠大的情況下。 圖1為超聲速風洞出現壅塞示意圖。超聲速風洞左端為一拉瓦爾管喉道，中部為實驗段，右端為第二喉道。風洞起動時入口和出口的壓強比逐漸增大，洞中流速隨之增大，當拉瓦爾管喉道截面處的流速達到聲速時，它的下游出現一段超聲速流動區和起動激波（圖1a）。隨著壓強比增大，起動激波往下游移動。對于正常的起動過程，當壓強比達到某一值時，起動激波通過實驗段，就完成了起動過程。若第二喉道截面不夠大，在起動激波還未通過實驗段時第二喉道截面處流速就達到了聲速（圖lb)，這時，無論壓強比如何增大,起動激波也不能再往下游移動，實驗段氣流不能達到超聲速，便出現起動壅塞的現象。如果實驗模型太大，它與壁面之間的通道太小，其作用類似第二喉道，也會造成壅塞。為了避免壅塞，第二喉道橫截面積應足夠大。 飛機進氣道中的壅塞 在進氣道遠前方氣流馬赫數∞＜1時,進氣道前方氣流速度增大，進口內喉道處的流速增大，流量增加；當喉道處馬赫數0=1時，進氣道前方氣流速度再增大，流量也不再增加，只是在喉道后出現超聲速流和激波(圖2a)。在遠前方氣流馬赫數∞＞1時,超聲速氣流在進口前不受任何擾動，直接流入進氣道(圖2b)。在喉道面積足夠大，進入的全部氣體都能通過時，進氣道不壅塞。若喉道面積太小，能夠通過的流量小于直接進入的流量，喉道壅塞，喉道前氣體堆積,壓強升高,在進口前形成一道離體激波,一部分多余氣流溢出口外,喉道后出現超聲速區和激波（圖2c）。壅塞使飛機所受阻力大為增加，發動機的推力顯著減小。 上述壅塞都與喉道的存在有關，稱為幾何壅塞。在等截面的管道中，摩擦作用和加熱作用，也會使下游截面可能通過的最大流量減小，當某個截面處達到量大流量時就會發生壅塞，這分別稱為摩擦壅塞和加熱壅塞。實際管道中的壅塞往往是幾何、摩擦和加熱共同作用的結果。
