Directly heated measuring type negative temperature coefficient thermistors 直熱式測溫型負溫度系數(shù)熱敏電阻器
On the basis of analyzing infiltration process to different soil and water conservation tillage measures type , a increasing infiltration r ates model for different soil and water conservation tillage measures type by using water balance equation is woke out . 4 . accumulation depth and soil crust have a better affect to soil initial stage infiltration rates and a little affect to soil stable infiltration rates ( 4 )積水深度和土壤結(jié)皮對初始入滲速率影響較大,對穩(wěn)定入滲速率影響不大,隨著積水深度和結(jié)皮厚度的增大,這種情況尤為顯著,如在積水深度為5cm和3cm情況下,穩(wěn)定入滲速率在黃土高原溝壑區(qū)分別為0 . 57mm min和0 . 56mm min ,在黃土丘陵溝壑區(qū)分別為0 . 94mm min和0 . 93mm min ,兩者相差甚微。