ballast

Nghĩa (Tiếng Anh)

Noun

1. Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
2. Anything that steadies emotion or the mind.
3. Coarse gravel or similar material laid to form a bed for roads or railroads, or in making concrete; track ballast.
4. A material, such as aggregate or precast concrete pavers, which employs its mass and the force of gravity to hold single-ply roof membranes in place.
5. device used for stabilizing current in an electric circuit (e.g. in a tube lamp supply circuit)
6. That which gives, or helps to maintain, uprightness, steadiness, and security.

Verb

1. To stabilize or load a ship with ballast.
2. To lay ballast on the bed of a railroad track.
3. To weigh down with a ballast.

Phát âm là (IPA)

/ˈbæl.əst/

Từ nguyên (Tiếng Anh)

From Middle English bar (“bare”) + last (“load”).

Câu

Some or all of this ballast would then be discarded when cargo was loaded .

Một số hoặc tất cả các dằn này sau đó sẽ bị loại bỏ khi hàng hóa được tải.