Tritium is one of the mildest radioactive isotopes.

氚是和缓的放性同位素之一。

27 PBq of radioactive material.

27个1015底夸克的放性质。

One drawback: a nonradioactive dye must be administered through the child's rectum before a CAT scan can be performed.

在做CAT线之前，必须用一种非放性的染料给孩子的直肠染色。

The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.

研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅具有极的放性成因铅特点。

Radioactive nuclides are solidified at crystal lattice as one part of crystalloid by zirconolite-rich synroc, which greatly enhances the long-term safety of radioactive waste disposing.

富钙钛锆石型人造岩石将放性核素固定在其晶格中作为晶体的一部分固定起来,大大提了放性废处置的长期安全性,是固化放性废的固化介质。

The objective is to observe clinical effects of trolamine in the treatment of radiation-induced skin toxicity on the breast in breast carcinoma patients after modified mastectomy.

为了观察三乙醇胺治疗乳腺癌改良术后胸壁放性皮肤损伤的临床疗效。