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

a bamboo or wicker scoop  畚箕

air inlet scoop  进气口

air scoop  控制棒驱动; 进气口; 空气口; [招]风斗; 风斗; 自然通风吸入口

air scoop intake  进气口

air scoop=airscoop  风斗

aluminium grain scoop  铝质谷物铲斗

backward-tilted scoop failure pattern  后仰勺形破坏模式

boundary layer scoop  边界层进气口