thorium dioxide

基本解释

The use of thoria (thorium dioxide) as an agent was rapidly stopped as thorium causes liver cancer.
而使用氧化釷（二氧化釷）作爲代理人迅速停止釷導致肝癌。
The above results indicated that malignant transformation of golden hamster embryo cells was directly induced by thorium dioxide in vitro.
上述結果表明釷在躰外可直接誘發金黃地鼠胚胎細胞的惡性轉化。
Proponents of the technology say thorium is more abundant than uranium and does not involve the release of large quantities of carbon dioxide.
這項技術的支持者稱，釷的儲量比鈾更多，而且不會産生大量的二氧化碳。

a heavy insoluble white powder used in incandescent mantles. Formula: ThO2 (Also called thoria)