Ore minerals in the Colorado - type deposits are of uraninite and coffinite, with associated vanadium and minerals.科罗拉多型矿床中的铀矿物为晶质铀矿和水硅铀矿, 与之共生的还有钒,铜矿物....
Prepare yourself for a Dickensian romp complete with snow, street urchins and gentlemen in waistcoats.准备好迎接狄更生式的,包含积雪 、 街头顽童和穿着马甲的绅士的轻松情节.Some gentlemen were conferring close at hand, but took no notice of her.有几位先生就在旁边商...
An overdose of sun, sea, sand and chlorine can give lighter hair a green tinge.过量接触阳光、海水、沙粒和氯气会使浅色头发略呈绿色。Chlorine is usually liquefied before use or storage.氯在使用和贮存以前通常要液化.Derivatives of bromine are much more active than...