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10-15% of aquatic plants and hidden objects are planted shallowly at the edge of the pond to create an environment for lobsters to inhabit and shell and reduce mutual killing. The influence of water quality on lobster yield cannot be ignored. During the breeding process, the PH value of the pool water is kept between 7.5 and 8.5, and the transparency is 30-40cm. Fresh water should be added frequently, quicklime solution should be splashed regularly, water quality should be adjusted, and diseases and shelling failure should be prevented. 2. Feed feed reasonably. Lobsters will kill each other when hungry and under-fed, so the feeding amount must be sufficient. Lobster feed is animal and plant feed. Plant feeds are wheat, aquatic plants, rapeseed cakes, etc. Animal feeds are miscellaneous fish, miscellaneous meat, livestock viscera, etc. At ordinary times, the feeding time, feeding amount and feeding method are determined according to the habit of lobsters falling in the day and coming out at night and the density of lobsters in the pond. 3. Scientific fishing. Young shrimps can grow to commercial specifications in 60-90 days under the condition of suitable temperature and sufficient feed. The seedlings will be released in March and will be caught in rotation around June, selling large ones and keeping small ones.　　贤民的父亲是船长，在一次出海中因意外事故去世，之后贤民发誓要成为造船业的第一。他和世娜是青梅竹马的恋人，毕业后一同进东振集团工作，东振集团的继承人泰成爱上了世娜，在爱情和欲望之中，世娜选择了后者……Hardware Environment (Hardware Environment) and its peripherals constitute a computer physical system. That is, hardware facilities refer to the environment constructed by the sum of the material and physical conditions needed for communication activities.拳拳父子之情，温暖着他苍老孤独的心，此时项羽一句亚父叫出口，梦想成真，他如何能不激动？许久的惊喜后，范老先生才反应过来，说道：羽儿，这……项羽当即道：昔年齐桓公对管仲，秦嬴政对吕不韦都有仲父尊称。Lin Huiyin passed the Jiangnan Xieyuan examination, and Lin Ruhai hesitated. To be honest, he doesn't want his son to take part in this Spring Festival at all. Because he knew that his son was too young, that is, the coming year...Q: Which machine learning library do you like best?新书求推荐，求收藏，求评价等等。