ballast

ballast 的中文释义

• n.

  压载物, 压舱物

• [经] 底货, 压舱货

ballast 的英文释义

• n.

  any heavy material used to stabilize a ship or airship

• n.

  coarse gravel laid to form a bed for streets and railroads

• n.

  an attribute that tends to give stability in character and morals; something that steadies the mind or feelings

• n.

  an electrical device for starting and regulating fluorescent and discharge lamps

ballast 的词形变化

相关单词