问题
多项选择题
在旋流器中密度高于介质密度的较纯的矸石迅速向筒体内壁移动，于是被（）带向（）排出。
A.外旋流
B.内旋流
C.溢流口
D.底流口
答案
参考答案：A, D
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在旋流器中密度高于介质密度的较纯的矸石迅速向筒体内壁移动，于是被（）带向（）排出。
A.外旋流
B.内旋流
C.溢流口
D.底流口
参考答案：A, D
| Choose the correct answers to the questions. 为下列问句选择正确的答语。 |
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