We must deal with the crude soft soil artificially in order to meet the demand of groundsill intension, distortion and anti-seismic etc.
为了满足地基的强度、变形和抗震等要求，必须对天然的软弱土地基进行人工处理。
2
Isotope dilution method was adopted in lab for the study of the effect of crude oil contamination on the rate of nitrogen mineralization and nitrification in soil.
在实验室中用同位素示踪法，研究了土壤中不同石油污染量对氮矿化及硝化速率的影响。
3
Temperature and flow fields, and interfaces of water freezing in soil and crude oil solidifying in the pipeline were obtained through numerical simulation.