This was a genuine mistake, but it did cause me some worry.这是好心办错事，可是确实让我担心了一阵子。It is unlikely he would have mistaken hocus-pocus for genuine knowledge.他不可能把骗人的把戏错当成真正的知识。Customers know that our stocktake sales offer gen...
无差异曲线通常呈凸形.An indifference curve is usually assumed to be convex.凸形孔制程,提高探针准确度.Dual probe guiding hole drilling process for accurate probe contact.此外, 凸形轮和凹形轮的轴杆等部位若出现松动现象,也会造成压痕线不清晰.In addition, convexes and concave whe...