水動力滯后 的英文怎麼說
中文拼音 [shuǐdònglìzhìhòu]
水動力滯后
英文
hydrodynamic lag-
Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed
鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。The main issues of the research are put as following : firstly, with the international comparing of market sharing rate and trading competitive index, it was revealed that wheat in china has inferior international competitiveness with a bit rising during current years, however, which is still behind that of the main wheat export countries. secondly, after the international comparing of the main factors that affect the international competitiveness of wheat, it was discovered that chinese wheat has the obvious cost advantage on unit product, while because of the high circulation fee, it results in inferior advantage on the price ; low and unstable quality is another factor which leads to inferior wheat competitiveness ; the input of fertilizer and labor makes little impact on the productivity of chinese wheat, while the input of seeds, irrigation and machine makes a strong impact, so it should be more invested in seeds, irrigation and machine to reduce wheat ' s unit cost. the assistant industries of the wheat, such as breed, production materials and processing industries, have inferior international competitiveness and lagged development
其次，通過對影響小麥國際競爭力的主要因素的國際比較發現：中國小麥單位產品生產成本具有明顯優勢，但由於較高的流通費用，導致在價格上不具有優勢；小麥質量較差、品質不穩定是導致中國小麥國際競爭力較低的主要因素；生產要素中化肥和勞動力投入對中國小麥生產力水平的影響程度較小，而種子、灌溉和機械投入對小麥生產力水平的的影響程度較大，因此小麥生產投入要以增加種子、灌溉和機械的投入為主，代替大量的化肥和勞動力投入，進一步降低小麥單位產品成本，增強中國小麥國際競爭力；中國小麥的上下游輔助產業（包括品種資源、生產資料和加工業）的國際競爭力較弱，發展較為滯后；中國小麥生產者的組織化程度較低嚴重製約了中國小麥質量的提高、流通費用的降低和加工業的發展；小麥生產經營活動本身的特點決定了在充分發揮市場機製作用的基礎上，必須通過政府的宏觀調控來克服其市場機制的失靈，保障市場機制有效運行，但通過國際比較研究發現：中國政府在生產者支持、市場體系建設和國際貿易政策上對小麥的支持水平較低，與提高中國小麥國際競爭力的要求有較大差距，尤其是較低的生產者支持水平和市場體系建設程度制約了中國小麥國際競爭力的提高。Including actuality evaluation, environmental identification analysis, dynamic harmonious analysis, dynamic simulation analysis and policy decision putting into optimization scheme. the results showed as follows. 1, in the current agricultural production structure, output value of animal husbandry and crop planting occupy 93. 4 % of agricultural total output value, and forestry and fishery do not get fully reasonably develop ; the wild economic vegetables and fruits resources and water resources etc, are the superiority environment factors of agriculture development of this area, and the slope farmland and service system etc, are limited environment factors, and the science - technology and labor quality etc, are potential environment factors ; there exists some problems in the agricultural production system, for example, single productive constitution do n ' t correspond with varieties of resources, rich plant resources exploitation scarcity and economical crop development lag
本文選擇四川盆周山區這一特定地貌區域作為研究對象，以滎經縣為代表研究了該區農業生產結構的優化調整，包括農業生產系統的現有結構評價、環境辨識分析、動態協調分析、動態模擬評價分析和實施優化方案的決策建議，結果表明： 1 、滎經現有結構為以畜牧業和種植業並重的豬糧為主的農業生產結構，二者產值占農業總產值的93 . 4 ，林業、漁業未得到充分合理發展；野生經濟菜果資源、水資源等為該區農業發展的優勢環境因子，坡耕地、服務體系等為限制環境因子，科技、勞動力素質等為潛力環境因子；同時該區農業生產系統存在著生產結構的單一性與資源多樣性的利用不協調、豐富的植物資源開發不足、經濟作物發展滯后等問題。Being a member of wto ( world trade organization ), it would be beneficial to the export of processing fruit ; meanwhile, it could be confronted with serious challenge of foreign high - quality fruit, which could occupy much more share of home market
入世有利於加工水果的出口，同時面臨國外高檔水果進一步占領國內市場的嚴峻挑戰。杭州市水果銷售網路不健全，以販銷戶為主，市場建設滯后，農民參與市場化程度不高，龍頭企業銷售渠道不廣，帶動力不強。Then, the main factors that have resulted in the low level of the mechanization have been analyzed : the working scale of the soil, the rate of agricultural labor force transferring to other fields, farmer ' s low income, the backwardness of agricultural electrization, farmer ' s overall culture level and the weakness of expanding force
在此基礎上對導致我國農機化發展水平較低的主要因素進行了分析，認為農村土地經營規模、農業勞動力向非農業轉移速度、農民收入水平低、農業電氣化滯后、農民總體科技文化水平低和農機推廣力量薄弱是影響我國農機化發展的重要因素。At last, the paper evaluates modernization of towns in county administrative areas by quantitative way. it points out many problems at present in the span of scale alteration. for example, the ability of convergence is limit, land - use per - person exceeds normal standard, a lot of towns are lack of fund, the infrastructure lags behind
最後，以全省222個重點中心鎮為研究對象，對縣域城鎮的現代化水平進行定量化評估，指出縣域城鎮規模變動過程中所面臨的問題，如人口吸納力不足、人均用地嚴重超標、城建資金匱乏、基礎設施滯后等，並提出了進行制度創新、增強城鎮集聚能力等對策和建議。Thirdly, as the superfluous labour force in the countryside being difficult to transfer to the city, the marginal output of agriculture becomes low and the city population cannot increase accordingly, so the prices and demands of farm produces are on the low side, and peasants cannot rely on lands to provide for security
第三，由於農村剩餘勞動力難以轉移，農村勞動力的邊際產出很低。城鎮化的步伐嚴重滯后，城鎮人口比重較低，對農產品的需求不旺，農產品價格長期在低水平徘徊。土地產出的價值下降，農民難以依靠土地實現保障。As the big agriculture province and the country ' s main commodity grain base, jilin province has many problems in agriculture and rural economy as following : there are severe contradictions in rural industrial structure and fanner income structure ; the supply of grains and rural labor exceeds the demand ; the development of farm product processing industry and the county economy are relatively slow ; the level of urbanization and financial income are low
吉林省作為農業大省，國家重要的商品糧基地，農業和農村經濟面臨著以下幾大問題：糧食主產區產業結構和農民收入結構「兩個不優」並存；糧食供給與農村勞動力供給「兩個過剩」並存；農產品加工業發展滯后，全省糧食主產區縣域經濟缺乏活力，財政困難，城市化水平低。If there are high temperature gradient between cool liner and hot liner, compressive plastic strain appear at that transient time, which lead to gas film wall bearing high tensile stress at high temperature. high tensile stress is one of main reasons which destroy combustor
分析表明，起動過程中由於熱傳導滯后引發的溫度梯度可以導致火焰筒氣膜唇邊在起動瞬間發生較大的壓縮塑性應變，進而使得該區域在工作時承受較高水平的拉伸應力，高的拉應力會導致火焰筒萌生裂紋。There is especial systematic background to build up small towns in china. it cannot help but choose small towns " building - up under the condition that planned economic system makes deviation of economic structure of industrialization advancing urbanization, the large number of labor in countryside, and the chance of job is lack in cities. so the systemic barriers in small towns " building - up is the inertia effect of planned economic system
我國小城鎮建設具有特殊的體制背景，它是為了矯正計劃經濟體制下形成的「工業化超前、城鎮化滯后」的經濟結構偏差和解決我國農村勞動力數量巨大、大中城市就業需求不足而提出的，是提高我國城鎮化水平必然而無奈的選擇，因而小城鎮建設的體制性障礙是計劃經濟體制的體制慣性作用，具有政策剛性、交叉性綜合性和動態性等特徵。Other less frequent occurrences with administration of alpha 2 agonists include bradycardia and sinoauricular block, which hae been suggested to occur more commonly in young patients due to their high leel of parasympathetic tone ( 5 )
給與- 2受體激動劑后較少出現的作用包括心動過緩和竇房性傳導阻滯，這些作用更常發生在年輕人，因為其副交感神經張力處于高水平[ 5 ] 。Studies show that simply adopting multi - compound supporting is far from enough to control strong non - lineal deformation, meanwhile measures must be taken to harness the weakening course caused by fracture water
針對此情況，提出了動態過程式控制制的支護原理，採用預拉力錨桿、錨索、桁架和圍巖滯后注漿堵水加固相結合的全過程式控制制圍巖技術。分享友人