shortened rail；standard shortened rail；fabricated short rail used on curves；standard curtailed rail
hand rail [= open rail]
heavy rail for high speed rail way
High Manganese Steel Rail And Guard Rail
rail-to-rail
满电源
轨对轨
全摆幅
轨到轨
轨至轨
轨－至－轨
轨道-轨道
满幅
满摆幅
rail-to-rail amplifier transconductance
rail-to-rail input and output
Rail-to-Rail Input Stage
single-rail crane (mono-rail crane)
switch point；point tongue；switch rail；tongue rail；blade
underrail foundation；sub-rail foundation；sub-rail track bed
guidereading-discussing-extending teaching pattern