積壓交收 的英文怎麼說
中文拼音 [jīyājiāoshōu]
積壓交收
英文
settlement backlog-
A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm
在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。This pck avoiding miscellanecous circuit design, reducing parts and accessd ries, lowering volume and weight largely, and strengthening operating availability : provided mith high capacity to reduce quantity of batteries andjkeep same dischange time, without replacing battery frequently ; supplying nith stable putput power fit to origins of long time unstable voltage and avoiding supplying power by kattery under not power fqilure ; this unit can be located beside computer becamse of its beautiful appearance
本系列不間斷電源是本公司最新推出的新一代方波后備式不間斷電源，專為個人電腦設計，集交流穩壓器高速后備電源及尖峰浪涌收為一體，具有體積小、功能全、效率高、性能可靠、使用方便等特點，並具有周全的自動保護功能。
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