求翻译：2） 本道口铺面范围内的铁路应设护轨，护轨两端应做成喇叭口，距护轨端头300mm处弯向线路中心，终端处距基本轨的工作边不小于150mm。护轨为卧式设置。是什么意思？

2) the crossing pavement range of railway should set up a guard rail, guard rail at both ends should be made of the bell from the guard rail ends 300mm at the bend line center, the terminal at the side of not less than 150mm away from the basic track work. Guard rail for the horizontal set.

2) The present crossing in the context of the paved rail should be set up the rail, the rail ends should be made from horn, and the rail head at 300 MM to bend wire Center, located at the end of the base rail is not less than 150 mm edge. The rail is set.

正在翻译，请等待...

2) this crossing railway should be located within the pavement guard rail, both ends of the guard rail should be made trumpet, to the line at a distance of guard rail end 300mm bending Centre, Terminal from the basic Rails edge not less than 150mm. Guard rail for horizontal settings.

正在翻译，请等待...