问题
问答题 简答题
氧气站2Z2-3/165-Ⅰ型氮压机由哪些部分组成？
答案
参考答案：
压缩机主要由主机（主机主要有机身、曲轴、连杆、十字头、气缸、活塞、活门、密封器、刮油器、冷却器、气体过滤器、齿轮油泵组成）以及电机、电控柜、仪控柜等部分组成。
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氧气站2Z2-3/165-Ⅰ型氮压机由哪些部分组成？
参考答案：
压缩机主要由主机（主机主要有机身、曲轴、连杆、十字头、气缸、活塞、活门、密封器、刮油器、冷却器、气体过滤器、齿轮油泵组成）以及电机、电控柜、仪控柜等部分组成。
Have you ever heard of Teddy bears? Teddy bears were invented by accident. In 1902, American president Theodore (Teddy) Roosevelt was hunting (打猎) in the forest with several of his friends. Almost everyone had successfully shot (射中) an animal, but the president not. Nobody wanted to make the president look , so they tied an American black bear to a . They wanted the president to shoot it． The president was very surprised to see the bear tied to a tree. He felt it was to shoot the bear, because it couldn’t run away. He to shoot it, and the story of his decision went over the country. Everybody was moved by the president’s beliefs (信念). There was a cartoon showing the president refusing to shoot a cute bear. It was this cartoon and the story behind the president’s hunting trip that gave Morris an idea to make a new ．He made a small, soft bear and showed it in his shop window. Next to the bear he made a sign that read, “Teddy’s Bear.” The new toy was a big success and it Morris with the money to create a toy company. Teddy bears have been since they were first made. A teddy bear would be the first choice when people think about children’s toys. Theodore Roosevelt’s famous on a hunting trip in 1902 brought millions of soft, stuffed bears. They are being loved by people across the world.
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