ballasting
鎮流
Bal·last, v. t. [imp. & p. p. Ballasted; p. pr. & vb. n. Ballasting.]
1. To steady, as a vessel, by putting heavy substances in the hold.
2. To fill in, as the bed of a railroad, with gravel, stone, etc., in order to make it firm and solid.
3. To keep steady; to steady, morally.
'T is charity must ballast the heart. --Hammond.
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Bal·last·ing, n. That which is used for steadying anything; ballast.
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