threestage

基本解释

We use a threestage multi-method approach to ensure indepth exploration of the research issues.
我们运用了三个阶段，多种方法来确保研究问题的深度。
The "threestage &twoseries" prospecting modle has been built on three different stages of exploration, the prospecting method assemblage series and prospecting criteria assemblage series.
其找矿模型按照勘探方法组合系列和找矿标志组合两个系列，结合地质工作的地质普查、矿区详查和矿床勘探三个阶段而建立，形成“三段两列”找矿模型。
his paper studied the dimerization of C5 hydrocarbons in a cracked C5 fraction using a threestage tubular reactor.
采用分段管式反应器进行裂解C5馏份热二聚反应的研究。
threestage theory
三阶段论
threestage working mode
三级工作模式