| 摘要 |
Apparatus for drawing off and dispensing a predetermined quantity of liquid is of the type which includes a tube designed to contain said predetermined quantity of liquid. The tube has an open end via which the liquid is both drawn in and dispensed. The tube (10) is closed at an end (15) opposite from the open end (16). The inside volume of the tube (10) corresponds to the predetermined quantity. The tube (10) is rotated about an axis (11) by drive means. The tube axis (11) is spaced from over the complete length of the tube, from the closed end (15) to the open end (16). When the drive means rotate the tube in one direction, it is fully filled with the liquid (21) with the tube open end (16) immersed. When the drive means rotate the tube (10) in the opposite direction, it is fully emptied of the liquid (21) that it contains.
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