                             

                                ˮ·Сȣm
       ----------------------------------------------------------------------------------
        ·ʪ        ·                         (m) 
                                           0.50-1.00  1.01-1.50  1.51-2.00   >2.00   
       ----------------------------------------------------------------------------------
        ʪ·     ͡СҺճ        0.30-0.50  0.40-0.60  0.50-0.70  0.60-0.95

                   ʵ͡Һճ    0.40-0.60  0.50-0.70  0.60-0.85  0.70-1.10
       -----------------------------------------------------------------------------------
        ʪ·     ͡СҺճ        0.40-0.60  0.50-0.70  0.60-0.90  0.75-1.20

                   ʵ͡Һճ    0.45-0.70  0.55-0.80  0.70-1.00  0.80-1.30 
       -----------------------------------------------------------------------------------
        ע:1.淶3.0.7
             2.С·Σ߻ΪõĲϣɲõֵڷ
               ˮλߵ·Σ߻ΪԲĲϣӦøֵ
             3.С0.50 m ĵ,һ㲻ǽṹȡ      
