日期:
来源:雅诚德英语网
Radon escapes easily from the ground into the air, where it disintegrates through short-lived decay products called radon progeny.
氡很容易从地下释放到空气中并通过称为氡子核的短命衰变产物分解。
Radon escapes easily from the ground into the air, where it disintegrates through short-lived decay products called radon progeny.
氡很容易从地下释放到空气中并通过称为氡子核的短命衰变产物分解。