问题:电炉在新开炉烘炉和热停炉时间较长送电时变压器分接开关位置应选择为()接法。
Thursday, April 25, 2024
Friday, June 9, 2023
问题:铜是一种具有金属光泽的橙红色金属,组织致密、();()、及良好的延展性是铜最有价值的特性。
Thursday, April 25, 2024
Friday, March 24, 2023
Thursday, March 9, 2023
Sunday, January 8, 2023
Wednesday, May 3, 2023
问题:锍的定义是锍由两种及两种以上低价硫化物所组成的融合物,它们均有共同的组成()
Monday, September 12, 2022
Monday, October 2, 2023
Saturday, October 14, 2023
Tuesday, January 16, 2024
Tuesday, January 16, 2024
Sunday, September 11, 2022
问题:影响炉子热效率的主要因素是()、()、()及其他热损失
Sunday, September 11, 2022
问题:在放渣不跑铜的前提下,冰铜面及渣面应如何控制()A、尽量提高冰铜面B、尽量降低冰铜面C、尽量提高渣面D、尽量降低渣面
Thursday, April 25, 2024
Friday, June 9, 2023
问题:近年来湿法炼铜工艺有了更大的发展,现在世界上已有()的铜用湿法生产。
Saturday, March 30, 2024
问题:底吹炉放铜中心离炉底距离()A、300mmB、350mmC、380mmD、400mm
Friday, March 15, 2024
Friday, June 9, 2023
Friday, March 15, 2024