The Chinese sturgeon is a cold-blooded animal that crawls and lives in rivers, lakes, ponds, reservoirs and other fresh waters where the water flow is gentle and fish and shrimp are abundant. It is also often found in mountain streams. There are relatively frequent activities on the shores of quiet, clean and sunny water, sometimes landing but not too far from the water. Can crawl on the land, climb, and swim freely in the water. Hi sun or cool breeze. The folk proverbs describe the activity as "spring floods go to the beach, the summer is shameless, and the autumn cools down into the water, and the cold in winter is muddy." In the summer, there is the habit of drying in the sun, and in northern China, it hibernates at the end of October and begins to search for food in April of the following year. It prefers fish, shrimp, insects, etc., and also feeds on plant foods such as water grasses and cereals, and is particularly used for smelly fish and rotten shrimps. Others such as spoilage foods, such as lack of food will eat each other. Sex is afraid of sound, in the water or silt during the daytime, and at night the water is used for food (“snapping in the squat†or “in the squat†refers to the habit of using the cricket, burying the cylinder underground in the water, and the cylinder port is leveled with a trap in the ground. Caught and crawled into the tank and caught in the crawl); resistant to hunger, but gluttony and cruel. 4 to 5 years of maturity, 4 to 5 months of water mating, until 20 days of spawning, multiple sexual spawning, to the end of August; usually only 4 to 6 eggs for the first time. Females weighing about 500 grams can spawn between 24 and 30 eggs. Females older than 5 years old can produce 50 to 100 eggs a year; females can lay eggs 3 to 4 times during the breeding season. Eggs are spherical, milky, egg diameter 15 to 20 mm, egg weight 8 to 9 grams. After selecting the spawning point, dig the pit to a depth of 10 cm, lay the egg in it, and then cover it with soil to disguise it without leaving any traces; once spawned about 10 eggs, and after 40 to 70 days, the temperature will be hatched. Out of the shell, the umbilical cord falls off into the water for 1 to 3 days; eggs and juveniles are often attacked by mosquitoes, rats, snakes, and insects. The spawning sites generally have a quiet environment, dry sunny, and soft soil. According to research observations, the distance from the water surface can accurately determine the amount of rainfall in the current year. Life expectancy up to 60 years of age or more.
Short range distance sensors from JRT combine highly precise measurement results with quick and reliable response. Short distance sensor module use single-transmit and single-receive measurement technology and can be used to measure a distance or monitor the slow moving objects. For the laser pointer distance measure, also called optical range sensor, can measure legth, width, depth. Laser rangefinder transducer with rxtx has been widely used to industries.
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