词汇	销难
释义	销难 xiāo nán消除灾难。銷難
随便看	upstream sampling method upstream scheme Upstream section upstream sector up stream segment resistance up-stream segment resistance upstream sequence upstream shell upstream shift upstream shipping upstream side upstream side of the injector upstream slope up stream slope upstream slope length upstream slope of dam upstream slope-protection upstream slope ratio of dam upstream spray pattern upstream state upstream stimulating factor upstream stimulating factorusf upstream stimulating factorUSF upstream stimulatory factor upstream stop log gates