Reservoirs collect river water and pipe it to thirsty cities and parched fields. Rivers that once carried our ancestors' canoes now carry huge ships.
水库储蓄河水，然后，被送到缺水的城市和干渴的田野。我们祖先的独木舟曾经航行过的河流，现在浮载着我们的巨轮。
Discusses the selection line methods of convey coal pipe of long distance, from the angles of selection line principle, and the basic data to collect, etc.
本文从选线的原则、选线需搜集的基础资料等角度，论述了长距离输煤管道线路的选线方法。
Discusses the selection line methods of convey coal pipe of long distance, from the angles of selection line principle, and the basic data to collect, etc.
本文从选线的原则、选线需搜集的基础资料等角度，论述了长距离输煤管道线路的选线方法。
应用推荐