| 摘要 |
<p>Liquid storage means comprises a liquid container of high slim mode of construction with an opening (7) arranged in a ceiling region thereof and a liquid level measuring rod (4) of a hard-resilient material introducible into the opening. The cross-sections of the opening (7) and of the rod (4) over the largest part of its length are dimensioned relative to each other for guidance of the rod almost free of play, but so differ from each other in shape that at least one side (42) of the rod, which is provided with a measuring scale, can have no contact with a side of the opening and no contact with any interior wall of the container. Contact is prevented by concave surfaces (42) in a rod (4) whose apexes may define a rectangle, square or triangle. <IMAGE></p> |
