问题
名词解释
离子交换树脂再生
答案
参考答案:
指将一定浓度的化学药剂溶液,通过失效的离子交换树脂,利用药剂溶液中的可交换离子将树脂上所吸附的离子交换下来,使树脂重新具有交换水中离子的能力。
离子交换树脂再生
参考答案:
指将一定浓度的化学药剂溶液,通过失效的离子交换树脂,利用药剂溶液中的可交换离子将树脂上所吸附的离子交换下来,使树脂重新具有交换水中离子的能力。
One day, Miss White went over for the test results of all the students in the 7th grade. "You all did pretilly well," she told the class, "except one boy, but it broke my heart to tell you this." She looked at Steve." But the best boy in the 7th grade had failed the exam!"She just stared him. Steve looked down. After class that day, Miss White asked him to his office. "You're cleverest enough. You have to change. I'll give you another chances! Don't give up. I do care about you." Suddenly, he got it! Everyone cared about him! | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |