gravel island 中文意思是什麼
gravel island
解釋
礫石島-
The artificially intensified water purification technologies applied to the water improvement of the polluted river at home and abroad are summarized herein, and then the technologies with good prospect of popularization in china, i. e. the gravel contact oxidation process and the ecological floating island, are emphatically expatiated with the analysis on the actual case
摘要綜述了現有國內外對污染河流人工強化凈水工程技術，並著重對在我國有推廣前景的礫間接觸氧化技術和生態浮島技術進行了闡述和工程實例分析。
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