Some do all this underground by pumping steam into deeper deposits and pumping out the resulting slurry.
Some do all this underground by pumping steam into deeper deposits and pumping out the resulting slurry.
有些情况下可以通过把蒸汽注入到地下更深的油沙堆积处，使其溶解成浆，然后排出。
Some do all this underground by pumping steam into deeper deposits and pumping out the resulting slurry.
有些情况下可以通过把蒸汽注入到地下更深的油沙堆积处，使其溶解成浆，然后排出。