从法学理论上来讲，只有进口权理论才能正确地解决这一问题。
From the angle of legal science, it can only be solved by the theory of import rights.
PET片性能高于进口聚氯乙烯（ PVC）片，防漏性能好，应用可靠，成本只有进口部件的1%。
The properties of PET piece were better than those of polyvinyl chloride(PVC) piece, the cost of PET piece was 1 percent of import PVC piece cost.
在杂货店货架上的一般食品中，只有香料和一些进口产品(如印度芒果)是使用辐照灭菌的。
Among common items on the grocery shelf, only spices and some imported products, like mangoes from India, are routinely treated with radiation.
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