為您提供ballast英英釋意。" />

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首頁英語詞典ballastballast英英釋意

ballast

英 ['b?l?st] 美['b?l?st]
  • n. 壓艙物，[建] 壓載物；道渣，碎石
  • vt. 給…裝壓艙物；給…鋪道渣

英英釋意

1. any heavy material used to stabilize a ship or airship
2. coarse gravel laid to form a bed for streets and railroads
3. an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
4. a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
5. an electrical device for starting and regulating fluorescent and discharge lamps