Thursday, September 15, 2022
Thursday, September 15, 2022
问题:电容C1=1法拉与电容C2=2法拉串联,已知C1上的电压为10伏...
Saturday, September 10, 2022
问题:气吹式刮泥器应用重物压好,以防电缆跳丝把刮泥器带上天滑轮,导致(...
Thursday, September 15, 2022
问题:几个电容串联时,其等效电容的(),等于每个电容器电容量的()。电...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Thursday, September 15, 2022
问题:用分布电容法检查电缆时,断芯两段电容量分别为:C1=5μF,C2...
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:电成像测井时,当地层中出现层理、裂缝或渗透率发生变化时,小电极的电流()。A、不定B、随之发生变化C、恒定D、变化很大...
Thursday, October 27, 2022
问题:感应测井时,地层涡流在接收线圈中产生的感应电动势与地层电阻率成正...
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:微侧向测井仪推靠部分包括两个成()角的推靠臂,与推靠臂连接的井径拉杆、井径电位器及推靠马达等。A、120°B、90°C、60°D、180°...
Sunday, March 19, 2023
Thursday, September 15, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:随着汽车行驶阻力的变化,改变()传递给驱动轮的转速和扭矩,可满足...
Sunday, September 11, 2022
问题:二极管按结构分为()和();按材料可分为()和()。...
Sunday, September 11, 2022
Thursday, September 15, 2022