《旋转式喷头试验方法》(GB5670.3)列出了径向等距布设雨量筒时喷头的实测平均喷灌强度公式: ρ=sum from i=1 to n i·ρ_i[n(n+1)/2] (1) 但是,试验时为了减少工作量或雨量筒用量,并准酶测定喷头射程,常将径向排列的雨量筒分两段考虑,即在紧靠喷头的一段 The Rotary Spray Head Test Method (GB5670.3) lists the measured average sprinkler strength of a sprinkler when the rain gauge cylinder is equidistantly arranged: ρ = sum from i = 1 to ni · ρ_i [n (n + 1) / 2] (1) However, the test in order to reduce the workload or the amount of rain tube, and quasi-enzyme determination of the nozzle range, often radial arrangement of the rain tube into two sections considered, namely close to the nozzle section