推移质输送量 bed load discharge; bed material discharge; transport capacity of bed load
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In 2004 , we grew our ground business , we grew our air business , we grew our international business and we delivered more packages than ever before , davis concluded Davis总结说在二零零四年,我们的陆路货运、航空货运及国际包裹业务均有增长,包裹运送量更刷新历年纪录。