配额制度是在固定一段时间内对进出口商品所设置的上限。
A quota is an upper limit which is set on imports of a commodity for a fixed period of time.
企业需要购买(碳排放)配额才能排放二氧化碳，每年都会拍卖固定数量的配额。
Industries that emit carbon dioxide would have to buy permits to do so. A fixed number of permits would be auctioned each year.
进一步减少签证配额很有可能在明年四月份固定最高限额生效后实施。
further cuts are likely when a permanent cap comes into force next April.
进一步减少签证配额很有可能在明年四月份固定最高限额生效后实施。
further cuts are likely when a permanent cap comes into force next April.
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