脈沖噴流 的英文怎麼說
中文拼音 [màichōngpēnliú]
脈沖噴流
英文
pulsed jet-
The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation
高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。The direct lateral force control is that more than one hundred small jet engines are installed around the missile before the barycenter. by firing up these engines produce impulse propelling force in order to adjust the position of the missile
姿控直接力控制方式是在導彈四周重心前徑向安裝的很多個小型噴流發動機，控制噴流發動機點火，產生脈沖推力，對導彈進行姿態調整。The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other
當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。Standard practice for determining safe current pulse - operating regions for metallization on semiconductor components metric
測定在半導體元件上噴鍍金屬的安全電流脈沖操作區域的標準實施規范Two relevant models are intro - duced : ( 1 ) the neutrino rocket model for neutron stars with high velocities ; ( 2 ) the 3p2 - superfluid phase transi - tion model for pulsar glitches
介紹了與之有關的兩個模型： （ 1 ）高速中子里的中微子火箭噴流模型； （ 2 ）脈沖星周期突變的3p2中子超流渦旋渦旋相振蕩模型。Theory of the self - excited oscillation pulsed jet nozzle
自激振蕩脈沖射流噴嘴的理論分析Studies have shown, lead impeller nozzle it forms the hole to be equal to size of the nozzle, gush out from light, difficult to arrange bits and realize it cut one layer of advantages effectively ; under the equal condition, rotate the nozzle by oneself, can be designed in accordance with the actual need while vary the size of aperture of hole, gush out the distance longer effectively, it is apt to give play to the role of its pulse broken rock
以此設計出限速部分的參數，且初步討論射流功率與轉速之間的關系。研究表明，內導葉輪噴頭形成鉆孔孔徑與噴頭大小相當，有效噴距小，不易排屑和實現其切向剝層優勢；同等條件下，自旋轉噴頭，成孔孔徑大小可依實際需要設計，有效噴距較長，易於發揮其脈沖破巖作用。In a laser - powered plasma accelerator, an ultrashort laser pulse is focused into a helium jet that is a couple of millimeters long
在雷射電漿加速器里，一個超短的雷射脈沖聚焦到一束大約兩、三公?長的氦噴射氣流中。What the machine has superior to others is that it is able to insist the pressure invariableness, and pulse, shield and temperature can be adjusted
與現有技術相比cim具有保持沖洗壓力在恆定的范圍、實現脈沖水流、能調節沖洗液溫度、噴槍上設有防護罩等優點。The engine is tested on the dynometer using the software that can monitor the ecu ( electronic control unit ) internal dataflow. and the electronic control fuel injection system parameters ( e. g. position of throttle valve, engine speed, air temperature, engine temperature, duration of injection ) are acquired at many different working conditions of engine
本文以hirth3203二沖程汽油發動機為研究對象，利用開發的ecu內部動態數據流監測軟體進行發動機臺架試驗，獲取了在不同的油門開度和轉速下電控燃油噴射系統的一系列工作參數，如節氣門開度、發動機轉速、進氣溫度、氣缸溫度、蓄電池電壓以及噴油脈寬。分享友人