ecological tourist industry的用法和樣例：
例句
- The tourism industry impacts upon many environmental and economic areas.
旅遊產業對旅遊地的環境和經濟產生了很多影響。 - Quantified identification of the cluster of tourist industry is a criterion to measure whether there is a cluster in a certain tourist area.
摘要旅遊產業集群的量化識別，是衡量某一旅遊區是否存在集群的一個標準。
