| 摘要 |
The replaceable slot tube is formed by the central segment /1/, two end segments /2/ and /3/, and two closing segments /4/ while the central segment /1/ is made with a section of the original exit slot tube but always shorter than the original slot tube by the length of two end segments /2/ and /3/ while the central segment /1/ is fitted at its both faces with connecting flange /5/ and the end segments /2/ and /3/ are made with the same section as the exit slot tube while a recess is made on one side of each end segment /2/ and /3/ into which engages the closing segment /4/ that is mounted to the end segment /2/ or /3/, and all the parts as a whole form the final inner and outer shape corresponding to the original drainage slot tube. |
