The fine bubble generating apparatus can freely change the introducing directions of the gas and the liquid even after the apparatus is attached to a fixed section.
提供一种一旦安装到固定部分之后，也能够自 由地改变气体及液体的导入方向的微小气泡发生装置。
Fixed section bearings form one group of thin section bearings.
固定型轴承形成一组薄型轴承。
Fixed section bearings form one group of thin section bearings.
固定型轴承形成一组薄型轴承。
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