Thursday, September 22, 2022
问题:在热电偶与动圈显示仪表配套的测温系统中,所采用的冷端补偿方法有()。...
Thursday, September 22, 2022
Friday, September 16, 2022
问题:填空题磁电式电流表由()、圆柱形铁芯、()、转动轴、游丝、指针等组成。...
Sunday, July 23, 2023
问题:单选题低频信号发生器的频率范围是指()。A 0.001Hz~1KHzB 1Hz~1MHzC 20Hz~10MHzD 100KHz~30MHz...
Sunday, July 23, 2023
Thursday, September 22, 2022
Friday, September 16, 2022
Sunday, September 18, 2022
问题:什么是热继电器?它的主要组成部份是哪些?简述其工作原理。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:玻璃液体温度计常用的感温液有哪几种,其测温范围是多少?...
Sunday, September 18, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Saturday, October 7, 2023
问题:仪表的精度等级规定了仪表在规定工作条件下允许的最大百分误差。...
Thursday, September 22, 2022
问题:单选题数字开关切换的电压和电流不大于()。A 27V0.1AB 25V0.1AC 24V0.1A...
Wednesday, September 27, 2023
Thursday, September 22, 2022
问题:单选题频率200HKz以下的振荡器常采用RC振荡器,这是因为()。A 低频时LC电路不起振B 低频时LC值较大,制造困难C 低频时LC值较小,制造困难...
Monday, January 16, 2023
Thursday, September 22, 2022
Thursday, February 8, 2024