flat-bottom rail中文什么意思

平底轨

• flat:    adj. (flatter; fla ...
• bottom:    n. 1.底，底部。 2.地基，基础 ...
• rail:    vi. 咒骂，责备；抱怨 (agai ...

例句与用法

1. Railway fixed equipment . sleeper screws for flat - bottom rails
   铁路固定设备.宽底式普通道钉
2. Railway fixed equipment . sleeper screws with seating for flat - bottom rails
   铁路固定设备.平轨用带垫枕木螺钉
3. Railway fixed equipment . sawing and drilling of flat - bottom rails of types superior or equal to 26 kg m , of 60 g , 70 g grooved rails and their fischplates
   铁路固定设备.大于kg m的g g形平底轨及其鱼尾板的切割和钻孔