| 释义 |
ballastballast[ˈbæləst]n.1.■镇重物, 压块, 碇, 压载, 压舱物; 平衡器; (稳定气球的)砂囊2.■镇定物, 稳定因素; [喻]安定, 沉着3.■【电】镇流[平稳]器, 镇流电阻4.■(铁路的)道[石]碴, 碎石, 路基5.■(燃料)惰性质
词性变化ballast[ˈbæləst]vt.1.■使稳定[平稳, 平衡]2.■装镇重物3.■铺道碴
继承用法ballastern.ballasticadj.
习惯用语be in ballast1.■只装 压船物而没装货; 压舱航行2.■[喻]沉着, (为人)可靠have no ballast1.■不镇定, 不沉着mental ballast1.■心理[性格]上的稳定性
特殊用法bottom ballast1.■底碴boxed-in ballast1.■轨枕间道碴crushed stone ballast1.■碎石道碴foul ballast1.■泥污碴床high-tension mercury lamp ballast1.■高压水银灯镇流器incrusted ballast1.■混碴lead ballast1.■铅压载low-power-factor mercury lamp ballast1.■低功率因数水银灯镇流器pit-run gravel ballast1.■坑砾道碴, 未筛砾石道碴rear-wheel ballast1.■后轮配重solid ballast1.■固体压载variable ballast1.■可变压载water ballast1.■【船】水压载 |