《蒙特利尔协定书》1987年生效，起初预计在12年内削减一半[氟氯碳]气体。

Montreal, implemented in 1987, was originally expected to cut half of its gases in 12 years.

youdao

《蒙特利尔协定书》1987年生效，起初预计在12年内削减一半[氟氯碳]气体。

Montreal, implemented in 1987, was originally expected to cut half of its gases in 12 years.

youdao