downward phase 中文意思是什麼

downward phase 解釋
下降階段
  • downward : adj. 1. 下方的,向下的，低下的。2. 下降的；下坡的；（市價）下跌的。adv. ＝ downwards. adv. -ly ,-ness n.
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  1. The " catch " phase of the stroke should utilize an out - and - downward scull with minimal force

    劃臂的「抓水」階段應該利用最小的力外下劃。
  2. A hybrid migration method, named " fourier finite - difference migration ", is a post - stack depth migration scheme. the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity, another operator is the well - known first - order correction term, and the third operator is a finite - difference operator for the varying of the velocity function. phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method

    傅立葉有限差分（簡稱ffd ）偏移演算法是一種疊后深度偏移演算法，其向下延拓運算元是一種混合運算元，包括三項：一項是處理常速的相移運算元，一項是一階相移修正運算元，最後一項是類似45度方程的有限差分運算元，用來處理劇烈橫向變速。
  3. Flow patterns of oil - water - gas three - phase downward flow and transition from bubble flow to slug flow

    油水氣三相流的流型及泡狀流向彈狀流的轉變
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