%EC%9B%90%EC%9E%90%EC%A7%88%EB%9F%89%EB%8B%A8%EC%9C%84%2Catomic_mass_unit%28amu%29 Copy: has NO comma Hide Show Full text search for "원자질량단위,atomic_mass_unit(amu)" Search BackLinks only Display context of search results Case-sensitive searching Found 0 matching pages out of 1997 total pagesShow Context.You can also click here to search title.