duty exemption

基本解释

Tax and duty exemption on imported capital equipment and its accompanying spare parts b.
进口资产机械设备和附带零部件享受免税待遇。
Period of supervision of special goods entitled to duty exemption or reduction will be specified by the Customs General Administration.
特定减免税进口货物的监管年限由海关总署规定。
The absence of effective duty exemption/drawback programs, coupled with fiscal reliance on tariffs on intermediate and capital goods, have increased costs facing exporters.
缺乏有效的关税减免和退税计划，加上财政对中间产品和资本货物关税的依赖，都增加了出口国的成本。

This despite a cosy deal with the government that allowed the hotel to be built on interest-free bonds and operated with no tax, cheap rent, and even, for a while, a duty exemption on the luxury items that its managers imported to fill its rooms.
ECONOMIST: Red elephant
Some of the benefits are well-known, such as the lack of Vehicle Excise Duty and exemption from the London congestion charge, but it's becoming easier to charge up a Nissan LEAF on the move with more public charging points opening all the time.
ENGADGET: New Nissan Leaf comes to the UK with battery leasing option, extended range
The state looked after him well, providing him with a lavish tax-free pension, cars, servants and a lifetime exemption from import duty.
ECONOMIST: Canaan Banana