短语词组短语back -rake angle 背前角tollholder with back rake 具有后倾角的刀架back rake angle [机]后倾角;后斜角;纵向前角;倾角Tool back rake 刀具齿背前角ADJUSTING HANDLE SEAT -BACK RAKE 靠背角度调节旋钮;靠背角度调节手柄Rake Back 回佣回赠 返回 back rake