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...
欧拉反褶积法是磁测资料解释的重要方法.Euler deconvolution method is important for magnetic data interpretation.褶积算子一般通过泰勒展开或 非线性 优化来求取.The convolution operator can be derived from Taylor expansion or non - linear optimization algorithm....
...an area pockmarked by rain-filled depressions.密布着雨水洼的地区Industry depressions usually cause misery among the workers.工业不景气常常使工人受害.For milder depressions, certain forms of psychotherapy do work well.对较轻微的抑郁症，某些形式的心理治疗效果的...