| 1. | They have put up the price of coal again .
他们把煤的价钱又提高了。 |
| 2. | We ran out of coal , and had to burn wood .
煤烧完了，只好烧木头。 |
| 3. | We have received an order for two tons of coal .
我们已收到两吨煤的定单。 |
| 4. | Pennsylvania sits on 35 billion tons of coal .
宾州煤的蕴藏量为三百五十亿吨。 |
| 5. | Have we got enough supplies of coal ?
我们贮存的煤够用吗？ |
| 6. | The mine had yielded a total of about 3714 tons of coal .
这座矿已生产了3714吨煤。 |
| 7. | Electricity must be generated by the consumption of coal or oil .
发电需要消耗煤或石油。 |
| 8. | The degree of carbonization of coal depends on the temperature .
煤层的炭化程度取决于温度。 |
| 9. | The oversize is reduced by roll crushers to the correct size of coal .
大粒煤再用对辊压碎机压碎到要求的粒度。 |
| 10. | A man of eighty was picking up lumps of coal along the railroad .
一个年过八旬的老汉，这会儿正沿着铁路在捡煤碴。 |
