= impulse dial n. at impulse, n. compounds 2.
| 单词 | θ95407 |
| 释义 | the world > time > instruments for measuring time > clock > [noun] > secondary clocks (4) journeyman1904 = impulse dial n. at impulse, n. compounds 2. impulse clock1923 a secondary clock operated by electrical impulses transmitted at regular intervals by a master clock. impulse dial1931 see impulse clock n. Subcategories:— in an observatory (1) |
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