Ballast
01
压载物, 稳定配重
a heavy substance placed in a ship's hull or an airship's tanks to lower its center of gravity and counteract unwanted tilting, rolling, or drifting
例子
To climb above the mountain pass, the dirigible pilot jettisoned ballast sandbags.
为了爬升到山口上方，飞艇飞行员丢弃了压舱物沙袋。
02
镇流器, 电子镇流器
an electrical device used to start and regulate the current in fluorescent or discharge lamps
例子
A new electronic ballast made the lamp more energy-efficient.
一个新的电子镇流器使灯更加节能。
03
稳定器, 平衡物
something that provides mental, emotional, or moral stability
例子
Friendship can be a ballast against the stresses of modern life.
友谊可以成为对抗现代生活压力的压舱物。
04
道碴, 碎石
crushed stone laid to form a stable foundation for roads or railway tracks
例子
The track ballast helps drain water and keep rails properly aligned.
道碴有助于排水并保持铁轨正确对齐。
to ballast
01
压载, 稳定
to make something stable or balanced by adding or using ballast, which is a heavy material used to provide stability
例子
Engineers ballast the bridge supports to keep them steady during construction.
工程师压载桥梁支撑物，以在施工期间保持其稳定。
