Friday, September 16, 2022
计算题:生水暂硬3.5mmol/L,阳床出口酸度0.5mmol/...
Friday, September 16, 2022
测定水中总固体时,一般规定蒸干水分的温度控制在()℃。...
Friday, September 16, 2022
Friday, September 16, 2022
试亚铁灵指示剂实际上是指()与()的混合物;当以氧化剂滴定还原剂...
Friday, September 16, 2022
天平对同一物体连续重复称量时,多次所得的结果应完全符合的性能,称为天平的()。A、稳定性B、正确性C、灵敏性D、示值不变性...
Friday, January 12, 2024
二氧化氯的杀生能力一般为氯气的()倍。A、1~1.5B、1.5~1.6C、1.6~2.0D、2.5~2.6...
Wednesday, March 8, 2023
水体富营养化是由于水中氨、磷浓度增加,使水不()大量增加。...
Friday, September 16, 2022
Friday, September 16, 2022
计算题:称取工业硫酸亚铁1.345g,在酸性条件下,进行溶解,尔...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
影响混凝处理效果主要因素为水温、水的pH值、加药量、原水水质和接触介质。...
Saturday, February 25, 2023
Friday, September 16, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
补给水除盐用混床和凝结水处理用混床(高速混床)二者结构和运行上有...
Friday, September 16, 2022
电力系统稳定运行时,发电机发出总功率与用户消耗总功率相等。...
Friday, September 16, 2022