有效数字相加或相减时,它们的和或差的有效数字的保留应以小数点后位...
Friday, September 16, 2022
Friday, September 16, 2022
Sunday, February 12, 2023
爆炸的破坏形式有哪些()?A、直接的爆炸作用B、冲击波的破坏作用C、塌陷D、火灾...
Wednesday, November 2, 2022
高压供电系统常用的一次设备有:高压隔离开关,刀开关,自动空气断路器等。...
Saturday, December 2, 2023
爆炸的破坏形式有哪些()?A、直接的爆炸作用B、冲击波的破坏作用C、塌陷D、火灾...
Sunday, January 28, 2024
Sunday, February 12, 2023
采用贫再生方式的氢-钠离子交换法中,只是上层的交换剂转变成氢型,...
Friday, September 16, 2022
1摩尔任何气体在标准状态下的体积约是()升。A、2.24B、22.4C、224...
Saturday, July 15, 2023
进行除盐系统阴阳床的检修时,填装石英砂垫层应注意哪些问题?...
Wednesday, January 25, 2023
工作票应用铅笔填写,一式两份,经工作票签发人审核签字后,由工作负责人一并交给工作许可人办理许可手续。...
Thursday, May 25, 2023
型号为001×7的树脂属强酸性苯乙烯,系阳离子交换树脂。...
Saturday, March 9, 2024
Wednesday, June 7, 2023
Tuesday, September 13, 2022
()h内蒸汽(氢)电导率达到0.5μS/cm,未查明原因,并且继...
Friday, September 16, 2022
Saturday, December 2, 2023
Tuesday, September 13, 2022
Saturday, December 2, 2023
Thursday, November 17, 2022
运行中,转动设备的轴承温度不应大于100℃,电机温度应小于80℃。...
Saturday, July 15, 2023