| 摘要 |
<p>PROBLEM TO BE SOLVED: To measure liquids in various colors with high visibility in a simple structure.SOLUTION: A syringe 1 comprises: an outer cylinder 10 having transparency or translucency; and a plunger 20 inserted into the outer cylinder. The outer cylinder 10 is provided with a first scale 11 for measuring a liquid in the outer cylinder. The plunger 20 is provided with a second scale 21 for measuring a liquid in the outer cylinder. The second scale 21 can be seen from a first direction orthogonal to the longitudinal direction of the plunger, and cannot be seen from a second direction different from the first direction.</p> |
