heavy metal

名词 heavy metal:

1. a metal of relatively high density (specific gravity greater than about 5) or of high relative atomic weight (especially one that is poisonous like mercury or lead)
2. loud and harsh sounding rock music with a strong beat; lyrics usually involve violent or fantastic imagery

1. A heavy metal body, especially the head of a power hammer.
   锤头一种重的金属体，特指汽锤或打桩机的锤头
2. A very heavy metal bar used by firefighters and law enforcement officers to break down walls and doors.
   破墙槌一种非常沉重的金属槌，是救火人员和执法官员用来捣破墙和门而用的
3. Lead is a heavy metal.
   铅是重金属。