问题
问答题 简答题
简述反渗透高压泵联锁保护的动作过程。
答案
参考答案：当入口压力低于0.08MPa时，低压开关动作，使高压泵停运，保证高压泵不在空转下工作。
当出口压力高于2.2MPa时，高压开关动作，使高压泵停运，保证系统不在高压下运行。（高压对R/O膜有害）。
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简述反渗透高压泵联锁保护的动作过程。
参考答案：当入口压力低于0.08MPa时，低压开关动作，使高压泵停运，保证高压泵不在空转下工作。
当出口压力高于2.2MPa时，高压开关动作，使高压泵停运，保证系统不在高压下运行。（高压对R/O膜有害）。
阅读理解 Accident Report Form(表格) Accident: A car crashed（冲撞） into a tree. Some people were trapped （困）in the car. Weather: There was a heavy rain. Date of call: June 3,2006 Time of call: 9:30 p.m. Name of caller: Mrs Green Place: Zhongshan Road, Nanjing Conditions of victims（受害者）: Mr Green hurt his head. Mrs Green hurt her left leg. Their daughter felt frightened. Action: Policemen arrived at 9:40 p.m. and sent the victims to Gulou Hospital at 9:45 p.m. 小题1:What time did Mrs Green call the police?
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