喷头流量系数计算程序,自己编的一个小程序，但对搞节水灌溉的很适用哦-nozzle flow coefficient calculation procedures, their own small part of a process, but to engage in water-saving irrigation is applicable oh

喷头流量系数计算程序,自己编的一个小程序，但对搞节水灌溉的很适用哦-nozzle flow coefficient calculation procedures, their own small part of a process, but to engage in water-saving irrigation is applicable oh