GBT 2441.1-2008 尿素的测定方法 第1部分：总氮含量...

氢氧化钠浓度密度密度溶质的质量分数氢氧化钠溶液的浓度密度(20℃)g/cm3NaOH的质量分数/(g/100g溶液)物质的量浓度(mol/L)10.1590.03931.0050.6020.1511.011.0450.2641.0151.490.3781.021.940.4941.0252.390.6111.032.840.7311.0353.290.8511.043...

KQL离心水泵选型表扬程效率转速电机汽蚀重量m%r/min功率余量kgm3/hl/skwm1.10.38.5261.50.4283420.557341.80.516252.50.6915343.30.9113.5351.80.533192.50.6932253.30.9130232.80.78163441.1115425.21.4413.5412.80.7820.628...