Newer units, constructed under New Source Performance Standards (NSPS), may have their permit requirements tightened and new elements added.
根据新源业绩标准（NSPS）新建的设施，其许可条件可能会收紧，许可要件可能会增加。
Newer units, constructed under New Source Performance Standards (NSPS), may have their permit requirements tightened and new elements added.
根据新源业绩标准（NSPS）新建的设施，其许可条件可能会收紧，许可要件可能会增加。
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