| 1. | A unit of weight for precious stones , equal to200 milligrams
克拉宝石的重量单位，等于200毫克 |
| 2. | It releases more heat per unit of weight than any other fuel
作为燃料，它每单位重量释放热量最多。 |
| 3. | An ancient roman unit of weight equal to about one troy pound
阿斯古罗马一种重量单位，约金衡制一磅 |
| 4. | A unit of weight differing in various countries and times
不同重量单位在各个国家及时代各不相同的重量单位 |
| 5. | A varying unit of weight or money used in ancient greece and asia
迈纳古希腊及亚洲使用的一种不断变化的重量或货币单位 |
| 6. | In order to measure matter we must have units of weight , volume , and length
为了度量物质，我们必须有重量、容积和长度的单位。 |
| 7. | Coins as money didn ' t start to be common until about 500 bc , and a shekel was a unit of weight before it was a coin
直到大约公元前500年，硬币作为货币才开始普及起来，而谢克尔成为货币单位之前的重量单位。 |
| 8. | Any of several european units of weight that were equal to about8 ounces ( 227 grams ) , used especially for weighing gold and silver
金银重量单位任一种欧洲的重量单位，相当于8盎司（ 227克） ，尤指用于衡量金银 |
| 9. | The unit of weight , incidentally , was the " as " ; one twelfth of this was the " uncia " , from which we get our ounce and inch
他们的重量单位叫as ；这as的十二分之一叫uncia ，英文里的盎司和英寸都是从uncia一字演变而来的。 |
| 10. | Coal contains less energy per unit of weight than natural gas or oil it is difficult to transport , and it is associated with a host of environmental issues , among them acid rain
煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。 |
