Emission permit system — a type of transferable permit system in which the permits are defined in terms of the right to emit a stipulated amount of emissions.
排放许可系统——转让许可系统的一种类型，这个许可确定了在权限方面可排放物总额排放的约定。
Emission permit system — a type of transferable permit system in which the permits are defined in terms of the right to emit a stipulated amount of emissions.
排放许可系统——转让许可系统的一种类型，这个许可确定了在权限方面可排放物总额排放的约定。
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