The lack of fresh, high-quality palatability natural foods is an important cause of the death of primary crab crab seedlings. The water Pan is a small floating crustacean, distributed evenly in the pond, does not pollute the water quality, high nutritional value, is a full live feed, its slow swimming speed, easy to prey on crab, is the best palatability of crab feed. In the first 7 to 10 days before the crab ponds (water temperature 22 to 25°C), cow dung or pig manure is applied to the primary pool at 150 to 300 kg per mu; or in the case of 10 to 15 days before the crab ponds, the green manure is used. In the four corners of the first-class pool, it is immersed in water, and then it is frequently turned to promote rot. The green fertilizer is 200-400 kg per mu. Applying organic fertilizer in front of crab seedlings in order to produce water artificially?
Adult diapers are disposable urinary incontinence products, one of the adult care products, and a disposable diaper mainly suitable for incontinent adults.
Most products are flaky and shorts type. Use adhesive sheets to connect into a pair of shorts. The adhesive sheet also has the function of adjusting the waist size so as to fit different fat and thin body shapes.
Generally, the structure of diapers is divided into three layers from the inside to the outside. The inner layer is close to the skin and made of non-woven fabric; the middle layer is water-absorbent fluff pulp, added with polymer water-absorbing agent; the outer layer is an impermeable breathable film.
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