| 1. | Cars began using caps that incorporated two valves .
汽车开始使用装有两个阀门的油箱盖。 |
| 2. | The potassium hydroxide electrolyte is forced into the cells just before use .
在开始使用前把氢氧化钾电介质压入蓄电池。 |
| 3. | The exact inception of the use of poly tubes in the united states is unknown .
人们并不知道美国开始使用塑料管的确切时间。 |
| 4. | Scientists began using spectrometers to investigate the properties of the elements .
科学家们开始使用分光计去研究元素的性质。 |
| 5. | No one knows what ancient savage ancestor of ours first began to make use of fire .
没有人知道我们的哪个古代原始祖先首先开始使用火。 |
| 6. | Newer materials, such as syton, are chemo-mechanical and are beginning to be used .
较新的材料，如Syton这种化学机械抛光剂正开始使用。 |
| 7. | During the nineteenth century, a unit of chemical currency called the mole came into use .
十九世纪时，人们开始使用一种称为摩尔的化学通用单位。 |
| 8. | This was my initiation into the bizarre method of handling intelligence services finance .
这是我头一次开始使用希奇古怪的办法去处理情报机构的经费问题。 |
| 9. | When automobiles were first used, flimsy and inexpensive tourist cabins were built beside the highways .
刚刚开始使用汽车的时候，人们在公路旁盖起了简陋，收费低廉的汽车店。 |
| 10. | Wilson and his advisers were shocked when british and french generals revealed that their government were beginning to draw upon the last reserves .
当英法的将军们透露他们的政府开始使用最后的预备军时，威尔逊和他的顾问们感到震惊。 |
