quick silt-up  骤淤

silt surged up by breaking waves  破波掀沙

silt surged up by normal waves  正常波掀沙

pick-up up hay baler  捡拾式干草打包机

boot-up speeding up  启动加速

half built up crank shaft [= semi-built-up crank shaft  半组合曲轴; 半组合曲柄轴

Hold Up And Stop Up Rotating  短路堵转

on the up-and-up  诚实

put up or shut up  要么行动要么闭嘴

sequence of train breaking up and making up  解编顺序

up-and-up  向上

up-supply and up-discharge  上送上排

up-supply and up-exhaust  上送上排

WARM UP; WARMING UP  暖身活动

activated silt  活性淤泥

aeolin silt deposit  风尘堆积

air-power silt collector  空气吸泥机

alluvial silt  磷酸苯丙哌林; 冲积粉土

analysis of silt particle  颗粒分析