Wednesday, November 22, 2023
Sunday, September 11, 2022
制氢站生产的氢气纯度不小于()%,发电机内氢气纯度不低于()%。...
Friday, April 12, 2024
新树脂在使用前最好进行预处理,树脂经预处理后,有三大好处:()、()和()...
Tuesday, December 26, 2023
Sunday, August 27, 2023
电解制氢设备停运时电解液温度降至()才可以停碱液循环。...
Tuesday, September 13, 2022
高效纤维过滤器规定流速是()、规定过虑后在()以内为合格。...
Thursday, May 2, 2024
Sunday, August 27, 2023
Friday, January 5, 2024
Thursday, May 2, 2024
Sunday, September 11, 2022
造成给水系统腐蚀的主要原因是水中的游离二氧化碳降低了给水的pH值,破坏了金属表面的保护膜。...
Saturday, April 1, 2023
管道的弹簧支吊架起承重作用,同时还有()作用。A、减振B、限位...
Friday, January 5, 2024
为了防止离子交换树脂的流失,一般在混床的出口管路上加装(),以防...
Tuesday, September 13, 2022
Sunday, September 11, 2022
Z41H-25,DN300中的2.5是指(),300是指()。...
Tuesday, June 13, 2023
Sunday, September 11, 2022
高速混床输送树脂和阴阳再生罐为把树脂送干净都可在最后用空气输送。...
Tuesday, December 26, 2023
Sunday, December 31, 2023
Tuesday, September 13, 2022