| 1. | The ore minerals are bounded by the vein walls .
矿石矿物局限于矿脉之内。 |
| 2. | "be kind enough to throw out some of that ore. "
“劳驾，扔掉一些矿石吧。” |
| 3. | The ore assays high in silver .
这种矿石验明含银量很高。 |
| 4. | Single deposits contain millions of tons of ore .
单个矿床的矿石储量达数百万吨。 |
| 5. | Ores are also being obtained in quantity from other countries .
矿石也从国外大量输入。 |
| 6. | Many years ago men first heated iron ore in a fire .
许多年前，人们初次在火中锻烧矿石。 |
| 7. | Microscopically the ores are medium grained to amorphous .
显微镜下，矿石为中粒至非晶质。 |
| 8. | Ore is normally associated with areas of high relief .
在正常情况下，矿石与地势高的地方有联系。 |
| 9. | A certain iron are called lodestone would attract pieces of iron .
某种称为磁石的矿石会吸引铁片。 |
| 10. | It is with the metallic ores that we are concerned in this chapter .
我们在本章中要涉及的是金属矿石。 |
