We must find economical methods for extracting oil from shale.我们必须找到从页岩中采油的经济方法.Because some strata carbonaceous shale, the result of geophysical work was infected.因部分地层中含有碳质板岩, 对地球物理工作的结果产生了一定的影响.We can extract oil from...
We must find economical methods for extracting oil from shale.我们必须找到从页岩中采油的经济方法.We can extract oil from shale.我们可以从页岩中提取石油.More ammonium sulphate solution is being recovered in the process of distilling oil shale.在提炼油页岩的...