| 摘要 |
PCT No. PCT/SE95/01039 Sec. 371 Date Apr. 9, 1997 Sec. 102(e) Date Apr. 9, 1997 PCT Filed Sep. 14, 1995 PCT Pub. No. WO90/08726 PCT Pub. Date Mar. 21, 1996Apparatus for taking up liquid batches, comprising a take-up tube (10), a metering pump (20) for drawing liquid into the take-up tube by suction, and a washing pump (30) which functions to pump washing solution through the take-up tube in a direction opposite to the liquid take-up direction, through the medium of a washing tube (50). The washing pump is a self-sealing displacement pump. |
