選定水雷 的英文怎麼說

中文拼音 [xuǎndìngshuǐléi]
選定水雷 英文
selected mine
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 選定 : designate; selected
  • 水雷 : mine; mine fuse; torpedo; naval mine; underwater mine
  1. 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。
  2. In view of the seepage hazards existent in the homogeneous soil dam in landong reservoir and on the basis of physical property of the media and geophysical characteristics of the study area, the authors reasonably selected such geophysical techniques as high - density resistivity, ground penetrating radar, transient rayleigh wave and spontaneous polarization to make integrated exploration and find out the seepage path of water sources, thus providing grounds for evaluating stability of the dam body and designing the reinforcement plan

    摘要針對藍洞水庫均質大壩出現散滲等病險，根據區內各介質物理性質及地球物理特徵，合理選擇了高密度電阻率、探地雷達、瞬態瑞雷波和自然電場4種物探方法進行綜合勘查，查明病險的水源來向，為評估壩體的穩定性和加固處理設計提供依據。
  3. Abstract : in view of the seepage hazards existent in the homogeneous soil dam in landong reservoir and on the basis of physical property of the media and geophysical characteristics of the study area, the authors reasonably selected such geophysical techniques as high - density resistivity, ground penetrating radar, transient rayleigh wave and spontaneous polarization to make integrated exploration and find out the seepage path of water sources, thus providing grounds for evaluating stability of the dam body and designing the reinforcement plan

    文摘:針對藍洞水庫均質大壩出現散滲等病險，根據區內各介質物理性質及地球物理特徵，合理選擇了高密度電阻率、探地雷達、瞬態瑞雷波和自然電場4種物探方法進行綜合勘查，查明病險的水源來向，為評估壩體的穩定性和加固處理設計提供依據。
  4. In the first part of paper, we introduce the appliance of doppler weather radar in meteorological work in the near future, and simply enumerate all kinds of adjoint methods to retrieve data of radar. in the second part of paper, we choice some methods that are usually used domestically and overseas, compare excellence and flaw of the methods by using data of simulate wind field, analyze synthetically the precision of simulate result, the length of retrieval time and the structure of data distributing, lastly decide to regard ameliorated quasi - 4d adjoint method as retrieval technology in the paper. in the third part of paper, we retrieve the data of single doppler weather radar in hefei, anhui province, then calculate 3d wind field, streamline field, divergence, vorticity, helicity, moisture flux, divergence of moisture flux and potential vorticity from the result of retrieval

    文中第一部分對近年來多普勒天氣雷達在氣象工作中的應用作了介紹，同時簡單的羅列了反演雷達資料的各種變分方法；接下來在第二部分選取了幾種國內外常用的反演方法，利用模擬的風場資料比較各種方法的優缺點，從模擬結果的精度、反演時間的長短、資料的分佈結構上綜合分析，最後決定將已做改進的準四維變分分析方法作為本文的反演工具；第三部分就是反演安徽合肥多普勒天氣雷達資料，然後由反演得出的風場計算了各個時間各個層次的三維風速、流場、散度、渦度、螺旋度、水汽通量、水汽通量散度和位渦。
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