Lead deposits, which accumulated in soil and snow during the 1960s and '70s, were primarily the result of leadedgasoline emissions originating in the United States.
在二十世纪六七十年代，铅沉积就在土壤和雪中不断累积，这主要是美国的含铅汽油排放的后果。
2
Levying a tax on leadedgasoline is an important policy to implement the use of unleaded gasoline.
征收含铅汽油税是实行汽油无铅化的一项重要政策。
3
Leadedgasoline exhaust pollution of traditional gasoline with the production process of tetraethyl lead as an anti-explosive agent.