The radiation radius of the radioactive radium radiator in the stadium is variable.
The radiation radius of the radioactive radium radiator in the stadium is variable.
放射性的镭暖气装置的辐射半径在体育场是易变的。
The radiation radius of the radioactive radium radiator in the stadium is variable.
放射性的镭暖气装置的辐射半径在体育场是易变的。