Abstract: An engineered recirculating aquaculture fish pond and a fish culture method are provided. The engineered recirculating aquaculture fish pond is simple to operate, has strong adaptability to different culture environments or culture varieties, and is not only suitable for large-scale aquaculture enterprises but also suitable for small-scale farmers. An aeration water lifting device is designed to simultaneously perform aeration and drainage, which can reduce the use of electric equipment, decrease the production and maintenance cost, improve the cost performance of single equipment, and save the internal use space of the pond. Nozzles are arranged in more than two directions, which is convenient for performing aeration in different directions, uniformly dispersing impurities carried in water in a deep ditch, intercepting to reduce local blockage, improving a single utilization rate of an intercept structure, and preventing heavier impurities from accumulating at a channel bottom of the deep ditch.

Abstract: An engineered recirculating aquaculture fish pond and a fish culture method are provided. The engineered recirculating aquaculture fish pond is simple to operate, has strong adaptability to different culture environments or culture varieties, and is not only suitable for large-scale aquaculture enterprises but also suitable for small-scale farmers. An aeration water lifting device is designed to simultaneously perform aeration and drainage, which can reduce the use of electric equipment, decrease the production and maintenance cost, improve the cost performance of single equipment, and save the internal use space of the pond. Nozzles are arranged in more than two directions, which is convenient for performing aeration in different directions, uniformly dispersing impurities carried in water in a deep ditch, intercepting to reduce local blockage, improving a single utilization rate of an intercept structure, and preventing heavier impurities from accumulating at a channel bottom of the deep ditch.

Abstract: A multi-functional storage box, comprising: a first body comprising a first bottom plate and a first side wall, wherein the first side wall is provided on the first bottom plate to form a first side opening; a second body comprising a second bottom plate and a second side wall, wherein the second side wall is provided on the second bottom plate to form a second side opening; the second side opening abuts against the first side opening, the first body and the second body are enclosed to form an upward-opening receiving cavity; one end and the other end of the second side wall respectively adjoins one end and the other end of the first side wall to respectively form a left and a right wall of the receiving cavity; a flipped cover connected to the left wall or the right wall of the receiving cavity.

Abstract: The present invention discloses a multi-functional storage box, comprising: a first body comprising a first bottom plate and a first side wall, wherein the first side wall is provided on the first bottom plate to form a first side opening; a second body comprising a second bottom plate and a second side wall, wherein the second side wall is provided on the second bottom plate to form a second side opening; the second side opening abuts against the first side opening, the first body and the second body are enclosed to form an upward-opening receiving cavity; one end and the other end of the second side wall respectively adjoins one end and the other end of the first side wall to respectively form a left and a right wall of the receiving cavity; a flipped cover connected to the left wall or the right wall of the receiving cavity.