| 单词 | ballast |
| 释义 | ballast['bæləst]n. 压载物, 压舱物【经】 底货, 压舱货 ballast bal.last AHD: [b²l“…st] D.J. [6b#l*st]K.K. [6b#l*st]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2. 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3. The gravel ingredient of concrete.石碴：组成混凝土的砂料4. 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2. 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）语源:1. Perhaps from Old Swedish 可能源自 古瑞典语 2. or Old Danish barlast 或 古丹麦语 barlast 3. bar [mere, bare] * see bhoso- bar [仅仅的，仅有的] *参见 bhoso- 4. last [load] last [载重] |
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