＃5、6机凝结水精处理加药系统目前投入的是什么？加药量是如何控制的？
参考答案：
现在主要投入的是给水加氨和凝结水加氨系统，主要用于调节锅炉给水的PH值，减少对管道等设备的腐蚀。加药量的控制采取计量泵冲程调节和电机变频调节两种方式，前者可以改变一次给药量的多少，属机械调节；后者可以改变加药速度的快慢，属热工信号调节。目前因PH计测量值不稳定，且测量值滞后，暂无法投用自动加药。（加联胺系统已经停用）
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| Jose had just seen his friend, Mike. Several hours ago his friend was 1 by a speeding truck and hurt badly. He wept (流泪) silently as he thought about his 2 friend. Nothing else seemed to 3 now. He was so sad that he 4 do his school papers. At home, he looked at the TV screen but nothing seemed to be 5 . Jose knew that Mike would get better, but he worried about the 6 . Would it happen again? Mike was a big dog, and Jose knew that he should probable 7 in the country where there were fields and woods. There he could run and play safely away from the city 8 . Jose also knew that if he gave Mike to a farmer, he would never, if ever, get to see him 9 . It was very 10 for him to decide. Jose had 11 Mike from the time he was born. He knew what Mike 12 , and he took care of him. He wasn't sure that a new 13 would take care of Mike in the same way. Jose didn't know 14 he could protect Mike if he stayed in town. Dogs like Mike who want to 15 often have a way of getting away when you don't watch them carefully. | ||||
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