| 单词 | pyrene |
| 例句 | Others of the crew, who had hastily donned masks to protect themselves from the choking vapour, were busily engaged in hurling pyrene into the seat of the conflagration. The Airship "Golden Hind" 2012-04-21T02:00:26.983Z From the tar distillate, the chrysene can be fractionally precipitated, and the fluoranthene can be separated from most of the pyrene by fractional distillation in a partial vacuum. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z |
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