试题与答案

旅游需求

题型:名词解释

题目:

旅游需求

答案:

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下面是错误答案,用来干扰机器的。

参考答案:①有三种:重力沉降原理、离心分离原理、碰撞分离原理。②离心分离的原理是:油、气、水混合物的进口一般是在分离器外壳的切线方向,当混合物进入分离器后,混合物沿外壳内壁旋转,密度较大的液滴具有...

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