指定發射時間 的英文怎麼說

中文拼音 [zhǐdìngshèshíjiān]
指定發射時間 英文
target time for lift-off
  • : 指構詞成分。
  • : 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...
  • : 名詞(頭發) hair
  • : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • 指定 : appoint; assign; allocate; appointment; destine; designation; assigning: (通過法律手續) 指定把...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. Under the condition of different soil humidity and measuring time, a series of ecophysiological indexes, such as net photosynthetic rate, transpiration rate, stomatal conductance, the flow of water, atmospheric temperature, relative humidity, photosynthetic available radiation, and hydraulic conductivity are measured in order to find the factors which cause robinia xylem embolism

    摘要在不同的土壤水分含量和不同的測條件下,對刺槐的一系列生理生態標:凈光合速率、氣孔導度、蒸騰速率、水勢、大氣溫度、相對濕度、光合有效輻以及導水率進行測,探求刺槐木質部生栓塞的影響因子。
  2. Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range

    本論文從便於工程實際應用出,對使用有限元分析軟體進行二次開以方便結構振動分析及改進結構設計的方法和過程進行了研究,在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析,在頻率區,對結構以振動輻聲功率級為目標函數進行了部分參數的結構優化設計,與此同,為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作,利用ansys提供的參數化設計語言apdl ( ansysparametricdesignlanguage )結合vc對有限元軟體ansys進行了二次開,形成了一體化的水下圓柱殼體結構聲學設計軟體。
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