n.& adj.非放射性（的）...

nonradioactive的音标：nonradioactive的英式发音音标为：['nɒnreɪdɪə'æktɪv]nonradioactive的美式发音音标为：['nɒnreɪdɪr'æktɪv]...

Isn't the nonradioactive form of thallium used for rat poison?.铊的非放射性形态不是用于制造老鼠药吗？Isn't the nonradioactive form of that used for rat poison?铊的非放射性形态不是用于制造老鼠药 吗 ?...