width of oxidized coal seam

例句：

1. 1. The width of the road is 20 meters.
   这条路的宽度是20米。
2. 2. The width of the river is about 500 meters.
   这条河的宽度大约是500米。
3. 3. The width of the bridge is sufficient for two cars to pass through.
   这座桥的宽度足够两辆车同时通过。