我国大多数原油含氮量()。A、均大于1%B、0.54~1%范围内C、均低于0.54%D、均低于0.1%...
Sunday, March 10, 2024
计量仪器是将()转换成可直接观察的示值或等效信息的计量器具。...
Saturday, September 10, 2022
交流通路就是放大电路的交流等效电路,是在()时放大电路的输入回路...
Friday, September 16, 2022
伺服式液位计是应用()原理测量液位的。A、磁耦合B、浮力C、压力D、压差...
Friday, September 23, 2022
Wednesday, November 23, 2022
Saturday, September 17, 2022
某装有汽油的汽车罐车,测量其油高为1.067m,水高为15mm,...
Monday, September 12, 2022
Sunday, December 17, 2023
Friday, September 16, 2022
Saturday, September 10, 2022
Monday, September 12, 2022
喷淋降温有许多局限性,主要是耗水大、加快油罐锈蚀进程、如排水不好...
Thursday, September 15, 2022
测量装置因素、测量环境因素、测量方面因素和测量人员因素均是()产生的原因。A、绝对误差B、粗大误差C、随机误差D、系统误差...
Tuesday, December 27, 2022
流量计的线性度可用仪表系数K在整个流量范围内的()表示。...
Monday, September 12, 2022
Friday, September 16, 2022
测量结果总含有误差的,它不可能等于()。A、绝对值B、数值C、真值D、差值...
Tuesday, April 11, 2023
Monday, September 12, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
一级标准物质用绝对()或两种以上不同原理的准确可靠的方法进行定值...
Monday, September 12, 2022