| 1. | They have put up the price of coal again .
他们把煤的价钱又提高了。 |
| 2. | We have received an order for two tons of coal .
我们已收到两吨煤的定单。 |
| 3. | There are extensive coal deposits in the u.s.s.r .
苏联的煤的储藏很丰富。 |
| 4. | Pennsylvania sits on 35 billion tons of coal .
宾州煤的蕴藏量为三百五十亿吨。 |
| 5. | The noncarbon constituents of the coal would be separated .
煤的非碳成分将分离出来。 |
| 6. | The lower temperature corresponds to the plastic temperature of a certain coal .
较低的温度相当于某些煤的塑性温度。 |
| 7. | This is a technique whereby land is scraped from above in order to find coal .
这是削去表面土层来获取煤的一种开采技术。 |
| 8. | The coal consumption has declined since the early years of the twentieth century .
自20世纪的早些年起，煤的消耗就下降。 |
| 9. | Coal is of poor quality, while petroleum production is far below present needs .
煤的质量不好，石油产量又远落后于目前的需要。 |
| 10. | There was a greater output of coal than ever, the wonderful and delicate system ran almost perfectly .
煤的产量超过以往任何时候，这神奇、精密的体系运行得几乎尽善尽美。 |
