If you have a lot of time to measure the volume of the same liquid or granular materials, make the appropriate mark on the measuring circle, glued at the right level strips of adhesive medical tape. At the same time can be done on them and the labels which are specified died.
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In your journal in one of the rooms of yesteryear has published an article — "the plug". I must say that the proposed options combined metal dowels rather complicated to manufacture, but...
