lateral tunnelの例文

例文

1. Lateral tunnels were also created to enhance drainage and ventilation.
2. Up to 34 lateral tunnels each ending in a brood chamber branch off from the main tunnel.
3. The other early method used was the digging of bell pits with lateral tunnels, called drifts, following the vein.
4. The 55-foot ( 18 m ) shaft and subsequent lateral tunnel intersected the cave just above Collins, but when he was finally reached on February 17, he was already dead from exposure.