migration constant 中文意思是什麼
migration constant
解釋
遷移常數-
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。 -
Along with the constant discovery to superpressure reservoir in neogene deep formation of hanghua depression, the regularity study of oil and gas generation, migration and accumulation has been pay great attention by many researchers
摘要烴源巖成烴演化時，除了溫度和時間的重要影響外，壓力在油氣生成演化過程中的作用也日益引起重視。 -
With the development of internet and the constant appearances of the high - bandwith networked application, the power of the migration from traditional ethernet lan to fastethernet lan or gigabitethernet lan becomes stronger and stronger. today, 10 / 100mbps fastethernet lan has become the mainstream. in the network environment with tens of nodes, the ethernet switch has been the absolute necessary network device
隨著網際網路的發展、高帶寬佔用率的應用系統不斷出現，從傳統以太網向快速以太網（ 100mb s ， ieee802 . 3u ）和千兆以太網（ 1000mb s ， ieee802 . 3z和ieee802 . 3ab ）的遷移動力就越來越強勁。
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