A range of values or conditions, especially the range of exposures over which a photographic film yields usable images.

的时限价值或情况的范围，尤指曝光范围，在此期限内摄影用的底片能产生可用的影象。

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Exposures to bioaerosols in the environment are associated with a wide range of health effects with major public health impacts on infectious diseases, acute toxic effects, allergies and cancer.

环境中生物气胶的暴露与人体健康之影响间有很大的关联，于公共卫生方面的冲击主要有传染病、急性中毒影响、过敏症与癌症等疾病。

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Many of these reports are based on the results of epidemiologic studies, which examine associations between a wide range of behaviors and exposures, on the one hand, and the development of diseases, on the other.

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