前提取题库.txt

1 2 3 ph塣 4 h+caso4caso4?2h2oca3(c6h5o7)24 h2oh2so4 5 - 6 岻 1 豸 粻 2 1. 2. 3. 4. 5. 3 1. 2. 3. 4.仯 5. 4 1. 2. 3. 4. 5. 6. 7. 5 衣 2ml18ml 95%25ml20%520%20%5901 6 50棬ph壬 7 ph=3.0粻 ph3.0粻10 1 2 ph 3 4 5 621160 758135 621110 6 xazb1500 壺xay224/12501250u xay100/10001000uk xay60/10001000uk 7 15ntu 9.5%-12% 6% 2.5% 嵭3.0% 8 9 1. 2. 3. 4. 10 2c6h8o7?h2o+3caco3 =ca3(c6h5o7)2?4 h2o+h2o+3co2 11 1. 2.3. 4. 5. 12 ca3(c6h5o7)24 h2o+3h2so4+4h2o=2 c6h8o7?h2o+3caso4?2h2 13 14顣 1. 2. 3. 4. 5. 6. 15衣 1. 2. 3. 1. 2. 3. 16 8080859595100140 17 1. 2. 3. 4. 5. 6. 18 1 2 黯 3 4 5 6 19 1 2 2080 80飬飬85 21 1.rcs 2. 3.caso4 4. 5. 22 1. 2. 3. 4. 5. 23. 40% 24.rcs 2.5bu 25. du30/1800-a 26. 1. 2. 3. 27.rcs rcs 28.蹦2.2kw蹦5.5kw 29.7.5kw25m3/h32m 30.7.5kw25m3/h40m 31. 32. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3.壬 4. 5. 6. 7. 33. 34 1. 2. 3. 4. 1. 2. 3.磬 4. 35. 1. 2.3. 1.2.3. 36. 1. 2. 37. ? ? ? ? ? 38 20mpa 20mpa 18mpa 39 0.8mpa 0.8mpa 0.7mpa 40 İ 41 編13 赲 1913pp 13 42 43 44 phph 裬 45淶 1 0.8mpa10152030 2 3 325 4 180mpa 46 1 20m3/h,100m, 18.5kw8 2 75kw 3 4 5 27.8m3/h,20m 6 7 8 9 2.5% 10裬 1114.4m3/h,40m, 5.5kw 47 1 20m3/h,100m, 18.5kw8 2 75kw 3 4 5 050hz 6 7 8 9 30rcs 10 11codcod 48 m3/h m kwr/min ab3350 100 80 37 2900 ab100-50 120 40 30 2900 ab3350 100 80 37 2900 65-40-200 25 50 22 2930 65-40a20 287.5 2900 a 65fvh-54-k 25 547.5 2900 b65fvh-54-k 20 677.5 2900 htb-50-32-250v 25 67 18.5 2900 a 65-fvh-54 25 54 7.5 2900 b 65-fvh-54-20