Fuel supply authorities should give preference to the supply of oligosaprobic coal for civilian use.

燃料供应部门应当优先将低污染的煤炭供给民用。

youdao

Fuel supply authorities should give preference to the supply of oligosaprobic coal for civilian use.

燃料供应部门应当优先将低污染的煤炭供给民用。

youdao