regulation of radiation protection for handling nonsealed radioactive material
Related Translations:
开放: 1.(展开; 开花) come into bloom 短语和例子玫瑰花已经开放。 the roses have come into bloom.2.(解除封锁、限制等) lift a ban; lift a restriction; opening to the outside world 短语和例子我国的开放政策不是收, 而是要继续放。 china will contin
