游离碱

特种高纯石墨是一种经特殊加工工艺处理后的产品，其特点是低钼、低铁，是生产绿色无汞碱性一次高能电池的优质原料。

duty-free shop

Free on Board

win free

interest-free loan

FOB;f.o.b.(free on board)

free clinic

combined free skin flap, combined microvascular free skin flap

endless ropeway with power and-free system