preliminary reduction是什么意思_preliminary reduction的中文翻译

初步减少

preliminary───adj.初步的；开始的；预备的；n.初步行动；准备工作；预赛，预试

reduction───n.减少；下降；缩小；还原反应

preliminary research───初步研究

preliminary design───预备设计，初步设计，打样设计

preliminary crime───初犯

preliminary thesis───初步论文

pollution reduction───污染减轻；污染减少

oxidation reduction───氧化还原作用

balsamic reduction───浓缩意大利醋

Firstly, based on the preliminary evaluation for environment of dangerous source at the prospecting stage, the risk factors effect and construction of risk reduction can be determinated.───首先，据勘察资料对隧道突涌水的孕险环境进行初步评价，以确定隧道不同区段降低致险因子影响度的施工对策；