| 1. | A iron bar is solid , a pipe is hollow .
铁条是实心的，管子是空心的。 |
| 2. | This pipe connects with a smaller one .
这管子和一个较小的管子连通着。 |
| 3. | Water spouted from the break of the pipe .
水从管子的裂口喷出。 |
| 4. | The pipe is so small that it clogs very easily .
管子太细易塞。 |
| 5. | The air was removed from between the two pipes .
两根管子之间空气已抽出。 |
| 6. | These tubes are lightweight, soft and pliable .
这些管子重量轻，柔软易弯曲。 |
| 7. | The fangs of pit vipers are long, hollow tubes .
颊窝毒蛇的毒牙是长的空心管子。 |
| 8. | On the right was a clutter of pipes and debris .
右边是乱七八糟的管子和破碎杂物。 |
| 9. | An appropriate-size tube is chosen to fit the trachea .
选用与气管大小相仿的管子。 |
| 10. | It is connected to a string which passes through a tube .
它与一根通过管子的绳子相连。 |
