They spiked the rails to the ties.
他们把铁轨钉到枕木上.
Some boards laid loosely on the railroad crossties.
铁路枕木上散放着几块木板.
The rails of the two tracks are supported on wooden ties resting on a ballast.
两条线路的钢轨放置在有道碴承托的枕木上.
They used spikes to fasten the rails to a railroad tie.
他们使用道钉把铁轨固定到枕木上.
Some roads are paved with wooden blocks , some with slabs of stone.
有些小路用枕木铺平, 有些用铺路石铺平.
General construction, utility poles, railway sleepers , props temporary construction materials and pulp.
一般构造材 、 电线杆 、 枕木、坑道支撑材、纸浆材.
Generally, track structure consists of track, rail pad, sleeper and ballast.
轨道结构一般包括轨道 、 轨道扣件 、 枕木、碎石垫层.
Cashmere, charcoal, crossties, cork products and certain initially processed wooden products, etc.
细山羊毛 、 木炭 、 枕木 、 软木制品 、 部分木材初级制品等.
Door - sills, drawers, construction base , nailway sleepers and bridges.
门斗用料 、 车辆材 、 建筑用料、枕木桥梁用材.
The steel bars have been welded together.
铁轨枕木被焊接在了一起.
The British call a railroad tie a sleeper.
英国人把“railroadtie” (铁路枕木)称为“sleeper”.
Many sleepers were fixed on a railway.
一条铁路上有许多固定了的枕木.
Pre - stressed concrete sleepers that have been designed to replace the conventional wooden ones have been tested.
预应力混凝土枕木用来替代传统的木质枕木并已通过了试验.