banded structure structure
newly-built structure and existing structure
Structure and electronic structure
the frame structure and masonry structure
excessive salivation with froth
froth
泡
泡沫
浮选
浮
发泡
起泡
消泡
起
泡沫起泡浪花使发泡
泡沫
发泄
起泡沫
浮渣
沤
翻浆
froth float of ore fresh water
froth float of ore wastewater
froth flotation equipment