... lifetime against damage 释义：抗辐射损伤(的)使用期 serviceable range 释义：使用范围,适用范围 compassionate use 释义：同情使用 ...
双语例句
1
Compounded with other insecticides, the nicotinamide insecticide can improve the drug effect and enlarge the serviceablerange.
与其它杀虫剂复配可以提高药效，扩大使用范围。
2
The conventional calculation formulas for excess air ratio are introduced, and the serviceablerange of different formulas is put forward by means of calculation comparison.