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...
Grain by grain and hen fills her belly.水滴石穿。The colon, or large intestine, distends and fills with gas.结肠，或大肠，因充满气体而膨胀。White stuccowork of curlicue fills the blank spaces.白色灰泥被塑成花纹装饰屋顶余白.Divine Love flows through our aur...
自1908年以来氯就被添加进饮用水当中。Since 1908, chlorine has been added to drinking water.氯用来给水消毒。Chlorine is used to disinfect water.加氯是为了杀死细菌。Chlorine is added to kill bacteria....