the detection of radioactivity对: answer; reply放射性: radioactivity; activity; emi ...的: 4次方是 The fourth power of 2 i ...探测: survey; search; sound; probe ...绝对放射性: absolute activity下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:对放射性的探测，即可在微信中查询翻译
