Hearing Rehabilitation Equipment is the process of helping someone effectively adjust to and manage his or her hearing loss . Hearing rehabilitation equipment is focused on helping overcome the challenges caused by hearing loss , therefore improving the quality of day-to-day life . It includes Hearing Aids , auditory trainer .
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The use of green manure technology: green manure is generally overturned in the flowering period, the pressure depth is 10-20 centimeters, and the amount of overturning pressure is 1000-1500 kilograms. According to the decomposition rate of green manure, the turning time can be determined. Green manure can be used to develop diversified operations.
Green manure cultivation and utilization technology
Green manure has the functions of providing nutrients, improving soil fertility, and reducing soil erosion. Its cultivation techniques include appropriate sowing date and seeding rate, improvement of seeding quality, and strengthening of field management. The main green manure crops include turfgrass, yunuyun, tianjing, strange hemp, alfalfa, and sand wangwang.