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单词 ballast
释义 bal·last AHD[bălʹəst] D.J.[ˈbæləst]K.K.[ˈbæləst]n.(名词)
    1. Heavy material that is placed in the hold of a ship or the gondola of a balloon to enhance stability.压舱物,压载:放在船舱或气球吊篮里以增加稳定性的重物
    1. Coarse gravel or crushed rock laid to form a bed for roads or railroads.道碴:用来铺公路或铁路路基的粗砂砾或碎石
    2. The gravel ingredient of concrete.石碴:组成混凝土的砂料
    1. Something that gives stability, especially in character.稳定因素:表明稳定性的因素,尤指在性格方面
v.tr.(及物动词)bal.last.ed, bal.last.ing, bal.lasts
    1. To stabilize or provide with ballast.用压载物来稳定或支撑
    1. To fill (a railroad bed) with or as if with ballast.铺沙石:用或似用沙石铺(铁路路基)
Etymology语源
    1. Perhaps from Old Swedish 可能源自 古瑞典语
    1. or Old Danish barlast 或 古丹麦语 barlast
    1. bar [mere, bare] * see bhoso- bar [仅仅的,仅有的] * 参见 bhoso-
    1. last [load] last [载重]
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更新时间:2025/1/6 19:42:27