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静止液体对平面的作用力等于静压力与平面面积的乘积，其作用点在（），方向垂直于平面。
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静止液体对平面的作用力等于静压力与平面面积的乘积，其作用点在（），方向垂直于平面。
A.平面的上端
B.平面的下端
C.平面的中心
D.平面形心处
正确答案：平面形心处
Tag：
液压传动
平面
乘积
时间：2022-01-17 21:38:02
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相对压力，绝对压力和大气压力这三者之间的关系是（）。
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假定既无黏性又不可压缩的液体称为（）。
相关答案
1.
液压静压力总是沿着液体作用面的（）方向。
2.
对液体的可压缩性影响很大。
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在（）情况下，液体的可压缩性对液压系统性能的影响不能忽略。
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液体是一种连续介质，这样就可以把液体的运动参数看作是（）的连续函数，并有可能利用解析数学来描述它的运动规律。
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一个完整的液压传动系统由哪几部分由组成？
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液压传动的缺点主要有哪些？
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液压传动的传动比无法严格保证的原因是什么？
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液压传动的优点有哪些？
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液压传动的介质是（）。
热门答案
1.
液压传动是靠（）来传递能量的。
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