| 摘要 |
PROBLEM TO BE SOLVED: To pour water or hot water with high accuracy by reducing a variation in the quantity of the water or hot water to be poured in a top-opened cup-shaped container having, on an inner surface, a water line having an uneven shape or level difference for pouring a predetermined quantity of water or hot water.SOLUTION: In the cup-shaped container, a water line having the uneven shape or level difference is formed on a line that draws a zigzag in an equal interval in a vertical direction centered on a reference water quantity line with respect to the reference water quantity line formed on the inner surface of the container in the case where the cup-shaped container is placed horizontally and that the predetermined quantity of water or hot water is poured. |
