Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
有机物很容易被臭氧氧化,生成易于生物降解的氧化有机物。...
Thursday, September 15, 2022
Thursday, September 15, 2022
重量法测水中硫酸盐时,两次煮沸的目的都为去除碳酸盐的干扰。...
Tuesday, September 13, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
水的比热容在所知物质中是()A、最小B、一般C、最大D、不确定...
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Thursday, September 15, 2022
1L水样中大肠菌群数等于滤膜上生长的大肠菌群菌落总数乘以()...
Thursday, September 15, 2022
Tuesday, December 12, 2023
Thursday, September 15, 2022
在实际的自动化控制上自动保护装置和()往往是配合使用的。...
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氧气是对人类活动影响较大的溶存气体之一,它是导致水中金属腐蚀的最...
Thursday, September 15, 2022
硅酸纳做助凝剂使用较麻烦,是因为()A、配制浓度不好掌握B、容易堵塞管道C、要有适当的酸化度和活化时间D、投加点不易确定...
Wednesday, November 22, 2023
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Tuesday, September 13, 2022
采用地下水源取水条件及取水构筑物简单,便于施工和运行管理...
Thursday, September 15, 2022
Thursday, September 15, 2022