transitive. To provide (a balloon, airship, etc.) with ballast, so as to regulate its altitude or prevent it from taking off.
| 单词 | θ207414 |
| 释义 | society > travel > air or space travel > ballooning > carry in or as in balloon [verb (transitive)] > furnish with ballast (1) ballast1784 transitive. To provide (a balloon, airship, etc.) with ballast, so as to regulate its altitude or prevent it from taking off. |
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