| 摘要 |
The invention relates to a device for balancing a line 7, 7a, 7b. This device comprises a transparent tube 1 closed by a stopper 6 and held vertically on the edge of a table 3 by means of a supporting block 2. After the tube 1, which is formed by two elements 1a, 1b joined by the block 2, has been filled with water, the line is dropped into this water and, by observing the position of the float 7b, balancing can be carried out by means of adjustments to the lead weights 7c. <IMAGE>
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