| 单词 | ballast |
| 释义 | ballast (once / 2528 pages) 1nv 2n A ballast is any heavy material that helps to make a ship or plane stable, including metaphorical ships like your mood. If you hate school, the thought of a weekend coming might be a ballast for your mood. Ballast comes from old ship terminology for cargo. It came to mean the weight of the cargo that prevents the ship from rocking around on the open seas. Any craft, ship or plane, needs ballast. A weight on the bottom of a rocket might act as ballast to help it glide straight. If you’re driving in snow in a tiny tin can car, you’ll need to ballast, or add weight, to prevent the wheels from sliding around. WORD FAMILYballast: ballasted, ballasting, ballasts USAGE EXAMPLESAnd some boldface names are preparing to begin trading in the public markets next year, potentially providing ballast for a bigger wave of debutantes. New York Times(Dec 29, 2016) And the neighborhood itself was losing one more bit of precious ballast: the rare public institution that held them together. New York Times(Dec 09, 2016) Still, McGregor does have the licence, and it is ballast he can use against the UFC as he plots a fight for next year. The Guardian(Dec 01, 2016) 1 1n any heavy material used to stabilize a ship or airship Hyper material, stuff the tangible substance that goes into the makeup of a physical object 2n coarse gravel laid to form a bed for streets and railroads Hyper crushed rock, gravel rock fragments and pebbles 3n an electrical device for starting and regulating fluorescent and discharge lamps Syn|Hyper light ballast electrical device a device that produces or is powered by electricity 4n a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations) Syn|Hyper ballast resistor, barretter resistance, resistor an electrical device that resists the flow of electrical current 5v make steady with a ballast 2Hyper brace, stabilise, stabilize, steady support or hold steady and make steadfast, with or as if with a brace n an attribute that tends to give stability in character and morals; something that steadies the mind or feelings Hyper attribute an abstraction belonging to or characteristic of an entity |
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