All environmental factors are unified to establish an integrated environmentalindicator.
通过回一处理，将所有环保因素同一，建立综合环保指标。
2
Besides, meiofauna are good environmentalindicator organism because they move slowly and are sensitive to the change of environment.
此外，小型底栖动物具有活动范围小、对环境的变化反应灵敏等特点，是环境改变很好的指示生物。
3
The firefly is also an important environmentalindicator. In Taiwan, firefly Numbers started to fall 30 years ago. Some varieties even disappeared. He Jianrong thinks people are to blame.