当气圈达到稳定时,从前罗拉到纱管的整段纱条上均承受一定的张力,这种张力统称为()。
参考答案:细纱张力
You're driving too fast. Can you drive ?
A.more slowly a bit
B.slowly a bit more
C.a bit more slowly
D.slowly more a bit
心轨工作边至护轨工作边的最小间距,窄轨道岔规定,900mm轨距不小于()。
A.552mm
B.572mm
C.574mm
D.872mm