调整火苗的燃烧范围，使其不超过锅底外缘，取得最佳加热效果。
Adjustment of the combustion flame, the outer edge of the bottom of the pot so that it would not exceed, the best heating effect.
现代的煤灰给水生态系统造成了有毒影响，科学家们表示，大量的煤炭燃烧也许已经造成了全球范围的有毒的海洋环境。
Given the toxic impact of modern coal fly ash on aquatic ecosystems, the scientists suggest that the massive coal conflagration may have created toxic Marine conditions the world over.
一名牙科医生主动站了出来，向白宫提出这样一项建议：将小型燃烧装置捆在蝙蝠身上，把蝙蝠装进炸弹形状的笼子里，然后大范围投放这种蝙蝠炸弹。
A dental surgeon contacted the White House, and suggested strapping small incendiary devices to bats, loading them into cages shaped like bombshells and dropping them over a wide area.
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