| 单词 | bell |
| 释义 | bell [bel] ENGINEERING 1. A hollow metallic cylinder closed at one end and flared at the other; it is used as a fixed-pitch musical instrument or signaling device and is set vibrating by a clapper or tongue which strikes the lip. 2. See <<bell tap>> METALLURGY A conical device that seals the top of a blast furnace. |
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