问题
名词解释
密封油系统的回油管一般直径较大，为什么？
答案
参考答案：
密封瓦的回油，特别是氢气侧回油，由于和氢气接触，油内含氢量较大，当油回到油管时，由于空间较大，使一部分氢气分离出来，这部分氢气可沿油管道的上部空间回到发电机去，回油管直径较大的目的就在于此。
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密封油系统的回油管一般直径较大，为什么？
参考答案：
密封瓦的回油，特别是氢气侧回油，由于和氢气接触，油内含氢量较大，当油回到油管时，由于空间较大，使一部分氢气分离出来，这部分氢气可沿油管道的上部空间回到发电机去，回油管直径较大的目的就在于此。
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| This is Red Star Town. My grandfather has lived here all his life. He 1 my grandmother here and they got married. Red Star Town was called Taping Town before. The government started 2 the wooden houses in this area when the Red Star Town underground station was built. 3 June 2000, Taping Town has become a history. My grandfather missed many things about Taping Town. 4 in the small town knew him well. They all liked him because he used to be a good 5 in a hospital. Now he is old and stays at home. In the past, there were 6 stone and wooden houses around here. Also, there were many big trees. Now new 7 are here and there. The streets are wide and clean. There are all kinds of shops and you can buy anything 8 . My grandfather is happy that life has improved so much, 9 he still feels lonely because he really misses everything in the past. Many of his friends moved away because the government let them 10 in new apartments in new towns. The old town is still beautiful in his heart though it has disappeared (消失). | ||||
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