impurity造句
例句与造句
- It is free from air, moisture or impurities .
它不含空气，水份和杂物。 - Impurities tend to segregate at grain boundaries .
杂质常常在晶粒间界偏析。 - This impurity must be purged away after death .
这种污秽应该在死后加以净化。 - The buildup of impurities often results in defective plating .
杂质的积累经常导致不良的电镀。 - The impurities present have an important effect on the rate of setting .
存在的杂质对凝固速率有很大的影响。 - It's difficult to find impurity in a sentence. 用impurity造句挺难的
- Semiconductors containing such impurities are called p-type semiconductors .
含有这类杂质的半导体叫做P型半导体。 - The residual impurities can effect wet-process production in several ways .
这些残留的杂质可能在几个方面影响湿法生产。 - Silica, in fact, is a desirable impurity because it is one of the reactants .
硅石实际上是一种有用的杂质，因为它是一种反应剂。 - Calcitic limestone is mainly caco 3 with relatively small amounts of impurities .
方解石灰岩，主要是由CaCo3和少量的杂质所形成。 - An aqueous caustic solution removes carrier gas impurities harmful to the detector cell .
苛性碱溶液去除运载气体中对检测元件有害的杂质。 - It requires a second fusion to refine it completely by freeing it from its last earthly impurities .
必须经过第二次熔解，除去最后的矿渣，才能提炼干净。 - In order to test the telescope for impurity and scratches, we will reverse it and view the bright sky .
为鉴定望远镜是否不纯净或有划痕，可将其倒着看明亮的天空。 - When a donor or an acceptor impurity is added to a semiconductor, we say that the material has been "doped" .
当半导体中加入了施主感受主杂质，我们就说该物质“掺杂”了。 - Organic impurities are sometimes present to such an extent that the rock must be calcined to remove them .
有时候矿石中存在有机杂质甚多，以至必须将矿石进行煅烧以消除之。 - The impurity of supposedly pure subcellular fractions is a constant threat to the plant biochemist .
以为亚细胞组分很纯而实际不纯的情况，一直是植物化学家感到难办的问题。
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