词汇	幽嚴
释义	幽嚴 yōu yán幽深静肃。幽严
随便看	alkali aggregate reaction alkali-aggregate reaction alkali aggregate reactivity alkali-aggregate reactivity Alkali-aggregation reaction alkali-aggrrgate rection alkali aging alkali albumin alkali albuminate alkali alcoholate alkali alcoholate amine mixture alkali alcosol alkali/alkali-earth metal salts alkali alkyl alkali alkyl sulfate alkali alumina metasomatism alkali amide alkali amount-reduction wastewater alkali analyzer alkali-andeside alkali-andesite alkali and related elements alkalian earth metal amalgams alkali antimonide alkali-antimonides