If it proves commercially feasible, coal plants around the world could one day be flanked by carbon-cleaning algae greenhouses or ponds.

如果能证实在商业上可行的话，将来有一天，世界各地煤炭发电厂的附近都会附设进行碳清洁的藻类暖房或藻类池塘。

youdao

What Happened: After spending the day studying coal tar derivatives, Fahlberg left his Johns Hopkins laboratory and went to dinner.

经过：在一整天的煤焦油衍生物研究之后，发哈伯格离开了他的约翰·霍普金斯实验室去晚餐。

youdao

Rather, parents have taken instead to sending their children to school every day with their own coal burners to stay warm in the often frigid, unventilated classrooms.

与之相反，倒是父母们每天提着家里的煤炉送孩子去学校，这样能使冰冷，通风不畅的教室里暖和一些。

youdao

Today, most alternative energy technologies that are discussed--wind, solar, tides, waves, clean coal, nuclear fission and, perhaps one day, fusion--are useful only for making electricity.

FORBES: Magazine Article

It can even depend on what time of day the batteries are charged because night-time electricity is less dependent on coal.

BBC: How environmentally friendly are electric cars?

Build enough coal-to-liquids plants and places like Montana and West Virginia could one day become major petroleum producers.

NEWYORKER: Unconventional Crude