amount of dustfall

• 降尘量

amount of dustfall的用法和样例：

例句

1. BY DECREASING the explosive power required to terminate a buried target, the use of earth-penetrating nuclear weapons lessens the amount of incidental radioactive fallout.
   藉由降低破坏地下目标所需的爆炸威力，使用钻地核弹将可减少放射性落尘量。