问题
问答题 简答题
油罐内加热器经常漏的原因是什么？
答案
参考答案：
1）操作不当，加热前没将蒸汽冷凝水排净，产生水击；
2）法兰垫片年久失修或老化，没及时更换；
3）管线腐蚀泄漏；
4）焊缝质量不合格；
5）冬季罐内温度低，加热器冻裂；
6）法兰连接螺栓把得不均匀，投用前没热紧试压。
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油罐内加热器经常漏的原因是什么？
参考答案：
1）操作不当，加热前没将蒸汽冷凝水排净，产生水击；
2）法兰垫片年久失修或老化，没及时更换；
3）管线腐蚀泄漏；
4）焊缝质量不合格；
5）冬季罐内温度低，加热器冻裂；
6）法兰连接螺栓把得不均匀，投用前没热紧试压。
Once, my father and I were waiting to buy tickets for the circus. Finally, there only one family _ us and the counter, who made a big on me. There were eight children, all probably under 12. You could they weren’t rich. Their clothes weren’t expensive but . The children were well-behaved., standing in line behind their parents and talking about what they would see that night. One could they had never been to the circus before. The mother was holding her husband’s hand while the father was smiling in . The ticket lady asked the father how many tickets he wanted. He proudly , “Eight for children and two for adults, please.” The ticket lady told him the price. The man’s wife let go of hand, her head dropped, and his lip began to tremble. The father leaned a little and asked, “How much did you say?” The ticket lady the price. The man didn’t have enough money. was he supposed to turn and tell his kids that he didn’t have enough to take them to the circus? Seeing this, my father put his hand in his pocket, a $20 bill and dropped it on the ground. Then my father _ down, picked up the bill and said the man, “Excuse me, sir, this fell out of your pocket.” The man knew what was going on. He wasn’t begging for it but certainly the timely help in such an situation. He took my father’s in both of his, squeezed(紧捏) tightly onto the , and with a rear running down his cheek, he replied, “Thank you, sir. This really _ a lot to me and my family.”
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