sinkv.下沉;沉没;渗透;低落;变低;衰弱;(太阳)落下n.水槽;沟渠;散热器;接收端
sinking skip凿井箕斗
sinking lamp凿井吊灯
sinking grab下降装载机
sinking cost凿井费
sink blister气泡,麻孔
sinking pipe沉管
sinking pump沉没式泵,凿井水泵,潜水泵
sinking down加深
sinking mill减径机
sinking well沉井