末前級 的英文怎麼說
中文拼音 [mòqiánjí]
末前級
英文
penultimate stage-
In the present paper, some investigations on loxoblemmus doenitzi ( gryllidae ) are reported. in order to discover the meiosis of spermatomeres and spermiogenesis, slice - pressing method and improved phenol - fuchsin dyeing method are used. in the course of meiosis, primary spermatocytes directly enter metaphase ii, not through telophase i and prophase ii
本論文以直翅目、螽斯亞目、蟋蟀總科、蟋蟀科的多伊棺頭蟋（ loxoblemmusdoenitzi ）為材料，採用壓片法-改良苯酚品紅染色，研究了精子發生過程中的減數分裂階段和精子形成，發現初級精母細胞第一次減數分裂后不經過末期和前期直接進入中期。In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed
以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。( 5 ) from august, 2002 to april, 2003, on the base of analyzing of 10kw valve tv transmitter of channel 14, chongqing tv transmitting station, brought forward process the solidification scheme to 400w valve power amplifier of the driver
重慶大學碩士學位論文中文摘要（ 5 ） 2002年8月至2003年4月期間，在對重慶電視發射臺14頻道（ uhf ） 10kw電子管電視發射機進行研究分析的基礎上，提出了對該機末前級400w電子管功率放大器進行固態化改造的方案並予以實施。The dynamic experiment was tried. the maximal output power, which can be achieved, is 420kw. although there is a distance to the goal of 500kw output power, it still is the maximal power amplification broadcast tube on final stage in our nation
該樣管上整機做動態試驗時，在整機電壓不變的情況下，輸出功率為420kw ，盡管與輸出功率500kw的研製目標尚有一定差距，但也是我國目前輸出功率最大的末級功率放大管。However, before this, physical education curriculum in mission school and reformer opinion of bourgeois establishes the theoretical and practical bases for physical education curriculum set by educational system of gui and mao. this is the source of our physical education curriculum in recent times
但癸卯學制頒布前，清末教會學校中的體育課程，洋務學堂的體育課程，以及資產階級維新派的教育主張和體育課程實踐，為癸卯學制規定的體育課程奠定了理論與實踐的基礎，這是我國近代體育課程的淵源。Research on cmos implementation of wlan transceiver rf front - end is done in this thesis. the transceiver uses the most used super - heterodyne architecture, its rf front - end consists of low noise amplifier, down - converter, up - converter, preamplifier, lo buffer and pll frequency synthesizer
本論文研究無線局域網收發機射頻前端的cmos實現，該收發機採用超外差式的拓撲結構，其射頻前端主要由低噪聲放大器、下變頻器、上變頻器、末前級、本地振蕩信號緩沖器和鎖相環型頻率合成器等模塊組成。For the reason of the same frequency, we use the ldmos fet. there are three development for the middle power amplifier : the first stage power amplifier, the drive stage power amplifier and the last stage power amplifier
本文針對遙測遙控放大器與其頻率相同的特點，對中功率放大器進行研究。本文對固態線性功率放大器的研製包括：前級放大器的研製、驅動級放大器的研製、末級放大器的研製。The dynamic programming model for water conveying and distribution system design is firstly presented in this thesis in the aspect of systematic optimization. taking the minimum earthwork or total cost as objectives, the longitudinal and transverse cross sections of two - stage and more canal system can be optimized to obtain optimal canal slops and relevant parameters, which will satisfy the restraints of water levels without erosion and sediment
在系統優化方面，本文在總結前人的基礎上首次提出了輸配水系統優化設計的動態規劃渠系協調優化模型，以土方量最小或總費用最小為目標函數，對兩級或兩級以上的渠系縱橫斷面進行優化設計，可得到滿足渠道不沖不淤、水位銜接及首末水位約束的最優縱坡及其相應的斷面參數。Starting with an analysis of the energy - saving methods in the design projects of wright, a great modernist, this thesis proposes that as the ecological environment around the world is constantly deteriorating, large - scale energy - saving designs should be emphasized to guarantee the maximum efficiency with respect to energy - saving and environment protection, these factors should be involved in architectural design
摘要分析了現代主義建築大師賴特的建築設計節能策略，提出在當前全球生態環境持續惡化的情況下，應重視對建築設計過程中大尺度節能設計措施的應用，採用系統化、層級化的節能設計措施，改變當前建築節能的「末端治理」狀況，以取得切實有效的節能環保效益。The first new - type turbine unit ( k156 ) was designed and manufactured by the shanghai turbine ltd, which was ordered by the ningxia zhongning power ltd. company, and the unit is adopted longer motion blade with 1050mm to the last stage for 330mw turbine in china
上海汽輪機有限公司第一次為寧夏中寧發電有限公司設計製造的新型改進優化型機組（ k156 ） ，該機型是目前國內330mw機組上在低壓缸末級第一個採用1050 ?長葉片，並且被寧夏中寧發電有限公司采購。Nanyang fusen magnesium powder limited company of henan is a current local biggest scale base which produces all species of magnesium powder, inactive magnesium powder, aluminum magnesium metal alloy powder, aluminum powder, copper powder, the powder of nickel, zinc powder, molybdenum powder etc. nonferrous metals powder series and every kind of profession that reunites the metal alloy produces, it owns fixed assets 30, 000, 000 dollars and the
河南省南陽福森鎂粉有限公司是目前國內規模最大品種最全的鎂粉鈍化鎂粉鋁鎂合金粉鋁粉銅粉鎳粉鋅粉鉬粉等有色金屬粉末系列及各種復合合金的專業生產基地。擁有固定資產3000萬元，員工500人其中中高級工程技術人Abstract : the newest mannfacturing, sintering technology on superfine and nanom eter hardmetal powder, manufacturing technology of cemented carbide, as well as re covery technique on tungsten materials and hardmetal wastes were comprehensively expounded in this paper and the reference proposals on hardmetal ' s developing trends, application prospects and environment problems were also put forward
文摘:綜合評述了第八屆國際鎢討論會關于硬質合金領域的超細、納米級粉末製造技術、燒結技術、硬質合金製造技術以及鎢材料和硬質合金廢品的回收利用技術，並對硬質合金的發展趨勢、前景應用等新動向及環境問題提出了參考性建議。Between metal, alloy nanopowder as well as nanocrystalline intermetallic compound has extremely extensive application prospect in a lot of high - tech fields. the demand of nanosize particle will increase increasingly with technology to develop
金屬、合金納米粉體材料以及金屬與金屬間化合物納米復合材料在許多高科技領域有著極其廣泛的應用前景，隨著工藝水平的發展，對微粒尺寸在納米級的超細粉末的需求將日益增加。Argentina ' s javier mascherano was surprised that tottenham hotspur striker jermain defoe was not more severely punished for biting his arm in a premier league match at the weekend, british media said tuesday
周二英國媒體報道，周末托特納姆熱刺隊前鋒傑梅恩?迪福在超級聯賽中咬了阿根廷哈維爾?馬斯切拉諾一口，沒有受到更嚴重的懲罰，馬斯切拉諾感到十分驚詫。At present, the company adopts the first five - steps molecule distillation production line domestic and the dry spraying equipment which imported from denmark and the auxiliary facility and other accessory equipment which imported from u. s. a, the company can produce dha powder of 1000 tons per year, the functional grade fish oil healthy of 100 tons, refine fish oil of 2000 tons and fish oil capsule of 80 tons
目前採用國內第一條五級分子蒸餾生產線和由丹麥進品的乾燥噴霧配套設施及美國產的其它附屬設備，可保證年產dha粉末100噸，功能級保健魚油100噸，精煉魚油2000噸，魚油膠囊80噸。分享友人