pollution index

英 [pə'lʊʃən 'ɪndeks] 美 [pə'lʊʃən 'ɪnˌdeks]

• 污染指数

pollution index的用法和样例：

例句

1. Progress in developing indices and monitoring techniques for air pollution were further advanced than in most other areas of environmental health.
   在空气污染指数与监测技术方面的进展比环境健康其它领域的进展更为显著。