| 单词 | twain-cloud |
| 释义 | > as lemmastwain-cloud twain-cloud n. a name for the cumulostratus. ΘΚΠ the world > the earth > weather and the atmosphere > weather > cloud > [noun] > a cloud > stratus > cumulo-stratus or strato-cumulus cumulo-cirro-stratus1803 cumulo-stratus1813 twain-cloud1823 stratocumulus1845 1823 T. I. M. Forster Res. Atmosph. Phænom. (ed. 3) i. 20 (heading) Of the Cumulostratus or Twaincloud. 1844 H. Stephens Bk. of Farm I. 246 Why..the heaped stratus [should be called] the twain-cloud is by no means obvious, unless..[as] being composed of two clouds,..but, on the same principle, the cirro-cumulus, and the cirro-stratus and the cumulo-stratus may be termed twain-clouds. < as lemmas |
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