preparative stage

基本解釋

Reservoir description can be divided into three stages:the early description in preparative stage, fine description in mature stage and precision description in EOR stages.
總體來看油藏描述可劃分為開發(fā) 準備階段的早期油藏描述、主體開發(fā) 階段的（中期）油藏描述和挖潛、提供采收率階段的精細油藏描述三大階段。
On the base of the preparative stage of the instruction design, the author analyzed various kinds of transmission tactics of the information in the experiment-teaching course.
在前期教學(xué)設(shè)計的基礎(chǔ)上，論文分析了教學(xué)過程中的各種信息傳遞策略；