A device to check the ripeness of watermelon

摘要

we are living in a watermelon to eat. a master of the household in accordance with the requirements of consumers, watermelon is ripe period in order to confirm with the use a knife to eat a watermelon in the upper end of the triangle shape to get benefits. the state of the consumer to confirm for . here, several problems are put forward. these problems and to improve the color of a watermelon and research. watermelon ripe condition to know, in the use of color in rice, rice grain, still let the color on the discharge principle, to be sure, the state is restored up to a color is used, the measurement of the paste. , multi use, after use, the use is safe and convenient to use a test tone.