论文部分内容阅读
计算电热温床的面积有两种情况.①根据已有的电加温线根数算出可以铺设的面积.电热温床面积=电加温线根数×每根的功率÷选择功率.比如,有4根800瓦的电加温线,功率选择100瓦/平方米,则铺设电热温床面积=4根×800瓦/根÷100瓦/平方米=32平方米.②根据育苗总面积确定电热温床面积.电热温床面积=育苗总面积÷播种次数,并以此计算需要的电加温线根数,即电加温线报数=电热温床面积×选择功率÷每根电热线的功率.比如,育苗总面积200平方米,先播种保护地生产用苗,当苗
There are two ways to calculate the area of the electric hotbed: ① Calculate the area that can be laid according to the number of existing electric heating wires. Electric hotbed area = root number of electric heating × power of each root ÷ select power. For example, there are 4 Root 800W electric heating line, power selection 100W / m2, the laying of electric hotbed area = 4 × 800W / root ÷ 100W / m2 = 32 m2. ② According to the total area of hotplate to determine electric hotbed area Electric hotbed area = total seedling area ÷ sowing times, and then calculate the number of electrical heating wire needed, that is electric heating wire number = electric hotbed area × select power ÷ power of each electric wire. For example, total nursery Area of 200 square meters, the first sowing seedlings to protect the production, when Miao