| 1. | Acids used in pickling can include sulfuric .
酸浸渍中用的酸有硫酸。 |
| 2. | I called the umpire a bum .
我认为裁判是个不中用的家伙。 |
| 3. | Word-by-word reading is a rotten way to read fast .
逐字阅读在速度上是不中用的。 |
| 4. | I can shoot only with my right hand, and that's useless .
我只会右手开枪，那是不中用的。 |
| 5. | The thermometers we use in everyday life are designed around this property of matter .
我们日常生活中用的温度计就是根据物质的这种特性设计的。 |
| 6. | During all this, he had stood foolishly to one side--short, gray, frizzled, inadequate .
他从头到尾只是傻里傻气地站在一边，矮矮的个子，花白的卷发，一副不中用的样子。 |
| 7. | Sodium chloride and hydrochloric acid are often used to regenerate spent ion exchange resins used in water purification .
氯化钠和盐酸常用来再生水净化中用的废的离子交换树脂。 |
| 8. | Despite his occasional protestations of friendship, he disliked england and thought her a worthless ally .
虽然有时他对英国表示友好，其实他并不喜欢英国，而且认为英国是一个不中用的盟国。 |
| 9. | These stray currents usually have a higher frequency (50-60h2 harmonics) than those used in the ip frequency technique .
这些游散电流的频率（5060H2及其谐波）通常比IP频率域法中用的频率要高。 |
| 10. | They found little difficulty, however, in agreeing upon who were the great and near-great presidents and which ones had been failures .
不过他们发现对于谁是伟大或者近乎伟大的总统，谁是不中用的总统这一层，彼此要达到意见一致，并不很困难。 |
