clearancen.清除;清理;清仓甩卖;间隙;许可证;结关;通关
clearance channel缝隙槽
clearance diagram限界图,限界轮廓
clearance terminal装卸区内结关
clearance- gauge限界
clearance absorber间隙吸收器
clearance diameter留隙直径,隙径
clearance constant清除常数
clearance grinding间隙磨削
clearance receptor清除作用受体
clearance of goods报关; 货物结关