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离岸价（FO+国外运费+国外运输保险费 离岸价（FO+国外运费+关税 离岸价（FO+增值税+关税 离岸价（FO+国外运费+增值税
FO价+海运费+保险费+关税 FO价+海运费+保险费+关税+外贸手续费 FO价+海运费+保险费+关税+增值税 FO价+海运费+保险费+关税+外贸手续费+增值税
that; solving /; to solve in which; to solve which; solving
closely; closely close; close closely; close close; closely
not to needed not needed needed not to be not needed
are being uncovered have been uncovering are uncovering have uncovered
comparing compare compared being compared
等于发射频率 为fo－63MHz 为fo＋63MHz 为fo±63MHz中的一个
carrying out which to carry out that carries out to carry out
are being uncovered have been uncovering are uncovering have uncovered
Fo<0.5； Fo>1； Bi<0.1； Fo<0.25。
not to be needed not needed needed not to be not needed
is to be observed observe observes is to observe
rather than would rather more than had better
are being uncovered have been uncovering are uncovering have uncovered
pursuing chasing reaching winning
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