This technique enables extraction of fuel from small, difficult-to-access coal seams, and could double the world's current coal reserves.

这项技术可以从窄而难以进入的煤层中提取燃煤，并可能使目前世界上的煤炭储量增加一倍。

youdao

This technique enables extraction of fuel from small, difficult-to-access coal seams, and could double the world's current coal reserves.

这项技术可以从窄而难以进入的煤层中提取燃煤，并可能使目前世界上的煤炭储量增加一倍。

youdao