水雷系帶 的英文怎麼說
中文拼音 [shuǐléixìdài]
水雷系帶
英文
mine belt-
According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling
依據在研產品特殊的外型結構和使用要求，確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線，即由纖維纏繞工藝成型主體異形件，閉模成型帶通槽外貼塊，用限位加壓工裝實現粘接的工藝路線；通過對原材料體系的篩選，確定了綜合性能較好的復合材料體系，以此為基礎進行了力學性能測試；運用有限元方法，建立了蒙皮、筋條和外貼塊的分析模型，綜合考慮結構特點和設計要求，對影響結構強度與穩定性的主要因素（包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度）分別進行了結構設計參數的優選，最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計；完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究；對縮比件進行外壓性能測試，並給出了應力、應變測試結果。The paper makes out comprehensive evaluation of under pressure mining of mining area through the below aspects : analysising water - resisting layer ' s occurrence geologic features, physical and mechanical property and stability of duancun - leigou bauxite deposit ; researching of confined aquifer ' s hydrogeology features, fault fracture zone and its transmissivity of cambrian - ordovician limestone ; combining calculation of thickness quantitative index of safe water - resisting layer and etc
摘要通過對段村雷溝鋁土礦隔水層賦存地質特點、物理力學性質及其穩定性分析和寒武奧陶系灰巖承壓含水層水文地質特徵、斷層破碎帶及其導水性的研究，結合安全隔水層厚度量化指標的計算等，對礦區帶壓開采做出綜合評價。Using a simple radiative transfer model for vegetation volume scattering and the integral equation model ( ibm ) for surface scattering with the field in situ measurements as the input, we compared the simulated and sar measured backscattering coefficients in different agricultural fields
特別是在植被覆蓋地表，對其下土壤水分的監測更帶有極大的困難性。因此，利用雷達後向散射系數反演土壤水分必須首先充分理解微波與地表的相互作用過程。The present results indicate that the quantitative description of the non - dimensional mean lateral streak spacing + differs from the results previously published. the spacing + is not a constant value of 100. it becomes larger as the reynolds number in terms of shear velocity increase
試驗結果表明，低速帶間距的無量綱數+並非為以往一致認為的100左右的常數，而是隨摩阻雷諾數的增大而逐漸增大，在水力光滑區與摩阻雷諾數成二次方關系，在過渡區則為線性關系。For radar is a complicated electronic system, the implementation of uwb will be subject to the level of electronic hardware. the large instantaneous bandwidth of uwb return causes great trouble to receiver
由於雷達是綜合性很強的電子系統，超寬帶雷達的具體實現要受到實際硬體水平的限制，其中視頻回波信號瞬時大帶寬給接收機數據採集造成了很大的困難。分享友人