问题
问答题 简答题
机组润滑油中带水由哪些原因造成？
答案
参考答案：
造成润滑油中带水的原因有：
①工业汽轮机前后轴封泄漏量过大，蒸汽窜入轴承箱被冷凝成水，随油流进入油箱。
②油冷却器发生泄漏。
③油箱顶部人孔盖，加油孔等不密封，运行人员有时用水冲洗油箱顶面，使水进入箱内
④新油质量不合格，水份超标而未及时查出，混入油箱。
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机组润滑油中带水由哪些原因造成？
参考答案：
造成润滑油中带水的原因有：
①工业汽轮机前后轴封泄漏量过大，蒸汽窜入轴承箱被冷凝成水，随油流进入油箱。
②油冷却器发生泄漏。
③油箱顶部人孔盖，加油孔等不密封，运行人员有时用水冲洗油箱顶面，使水进入箱内
④新油质量不合格，水份超标而未及时查出，混入油箱。
| 从方框中选择适当的单词，将短文补充完整。 | |
dogs are both their eyes and their good friends. __2__ makes dogs become guide dogs? The __3__ requirement (要求) is that a guide dog must be healthy and have a good temper (脾气). Second, one of the dog's parents must be a guide dog. Third, when they are two months old, they would be sent to the training center. People there __4__ them how to get along with people. Then they can understand __5__ to help people. Fourth, when they are one year old, they have to return to the training center to learn more skills about __6__ people. Then, if they pass the test, they will be guide dogs. Guide dogs help the blind __7__. Can other animals help disabled people? Now, some other animals are being trained to help them. In the USA, some monkeys have been __8__ trained to help those people that can't move any more. The monkeys can put a CD into the CD player, open the fridge (冰箱) to get __9__, turn on the light and even hand the owner the TV remote control (遥控器). __10__ these are simple tasks, the monkeys have to have about 18 to 24 months'training to be able to do them. Animals are not only people's pets, but also our best helpers. |