最简单的碎布地毯是由碎布条编在一起制成的。The simplest rag-rugs are made with strips of fabric plaited together.我用沾满油污的碎布擦我的自行车.I use an oily rag to clean my bike with.她收买旧碎布,然后卖了去造纸.She bought old rags which were sold for making paper....
用各种稀的无机酸来萃取阴离子.A variety of dilute mineral acids are used to extract the anions.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a thousandfold selectivity for fluoride over other common anions.通常, 钙素过量是与该元素相联系的阴离子伴随产生的.In general, e...
橡胶是有弹性的材料.Rubber is a resilient material.这些规定是有弹性的.These regulations are elastic.如果你要买已经片好的鱼片，一定要买鱼肉紧实有弹性的。If you buy the fish ready filleted, make sure the flesh is firm and springy....