Dupuit formula theoretical generalization with hydrochemical index is right of fact demonstration.从事实上进一步论证了水化学指标表示裘布依公式的理论概括是正确的.The installation and the operation of the digital apparatus hydrochemical station are intr...
An acrobatic feat that made a terrific hit with the audience was the somersaulting.大受观众欢迎的杂技表演是翻筋斗.Dragging the fully laden boat across the sand dunes was no mean feat.将满载货物的船拖过沙丘是一件了不起的事。He received a medal for his hero...