isoprotonic element等: class; grade; rank质子: proton; uron; hydrion; merro ...元素: element; elementary substanc ...子元素: daughter element; element，daughter; subelement等质子溶液: isohydric solution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:等质子元素，即可在微信中查询翻译
