rise and run ratio

踏步声级,m... ... ) bottle-nosed step 圆边踏步级 ) rise and run ratio 踏步级高与踏步宽比 ) mark tine sound level 踏步声级 ...

踏步扶手 - HOUSON的日志 - 网易博客... ... 大踏步前进 step out 踏步高宽比 rise and run ratio 踏步式座位 stepped seating ...

宽高比的英语翻... ... high aspect ratio 高比例的展弦比，宽高比，纵横比 rise and run ratio 踏步级高宽比 rise and run 高宽比 ...