[化学] formonitrile; hydrocyanic acid; prussic acid◇氢氰酸盐 hydrocyanide聚氢氰酸: polymerized hydrocyanic acid浓氢氰酸: stronger hydrocyanic acid氢氰酸 氰化氢: hydrocyanicacid氢氰酸hcn: prussic acid氢氰酸气: hydrocyanic acid gas下载手机词典可随时随地查词查翻译