更多bituminous例句

1. There are four types: bituminous (soft), anthracite (hard), semi-bituminous and semi-anthracite.
2. More than 80% of Virginia's mining employment is in bituminous coal which is the chief mining product of the nation as a whole.
3. The odor of the petroleum first discovered was similar to that of the cheap bituminous coal.
4. They anoint their children with a bituminous ointment at their birth, to prevent the growth of hair.
5. Like all bituminous earths, it needs the strongest drying oil.