根据流体()连续性和()方程,可以推导出流量基本方程式。...
Saturday, September 17, 2022
Saturday, September 17, 2022
Tuesday, September 13, 2022
H级K型热电偶的测温范围为400℃以上,其允许误差为()。...
Saturday, September 17, 2022
热电阻是根据电阻值随温度变化的性质,将()的变化用仪表显示出来,达到测温目的的。A、温度B、被测量C、电阻值...
Saturday, September 17, 2022
有两台测温仪表,其测量范围分别为0~8000C和600~11000C,已知其最大绝对误差为±6,试分别确定它们的精度等级...
Monday, October 17, 2022
Sunday, October 30, 2022
根据1968年国际实用温标的规定,基准铂电阻温度计的纯度R100/R0应不小于();工业用的纯度R100/R0应不小于()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
现有的以下几种测温装置,在测量汽轮机轴瓦温度时,最好选用()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
在下列流量计中,采用速度法测量流量的流量计是()。A、腰轮流量计B、节流变压降式流量计C、椭圆齿轮流量计...
Saturday, November 12, 2022
Saturday, September 17, 2022
当雷诺数小于()时,流体流动状态为()流,当雷诺数大于()时,流...
Saturday, September 17, 2022
调节阀理想流量特性主要有(),(),()及()等四种。...
Thursday, March 16, 2023
Saturday, September 17, 2022
用水校法标定浮筒液位计,其被测液位比重ρ1=1.2,液位变化满量500mm,求输出电流值。...
Monday, May 20, 2024
Saturday, September 17, 2022
计算题:有一配热电偶的动圈式温度仪表,刻度盘上标有外线路电阻R<...
Saturday, September 17, 2022
当弹簧管式压力表的示值误差随示值的增大成比例增大时,通常可调整(...
Saturday, September 17, 2022