| 摘要 |
<p>A well filtration device includes a first pipe including a first end having a first thickness and first opening diameter, a second end having a second thickness and a second opening diameter, and many openings through a portion of the first pipe. A second pipe includes a first end having a third thickness and a third opening diameter, a second end having the third thickness and the third opening diameter, many openings throughout the second pipe, and reinforcement portions throughout the second pipe, The second pipe is configured to attach over the first pipe to allow filtration of a liquid.</p> |
