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Chọn ngôn ngữ của từ điển
Ballast
01
chất dằn, vật nặng để ổn định
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
Các ví dụ
The passenger ferry adjusted its ballast water before docking to maintain an even keel.
Phà chở khách đã điều chỉnh nước dằn của nó trước khi cập bến để duy trì một sống tàu cân bằng.
02
an electrical device used to start and regulate the current in fluorescent or discharge lamps
Các ví dụ
Without a working ballast, the fluorescent tube kept flickering.
03
something that provides mental, emotional, or moral stability
Các ví dụ
His sense of duty was the moral ballast of his leadership.
04
crushed stone laid to form a stable foundation for roads or railway tracks
Các ví dụ
Construction crews used granite ballast for the new highway bed.
to ballast
01
to make something stable or balanced by adding or using ballast, which is a heavy material used to provide stability
Các ví dụ
The submarine was carefully ballasted before diving.
