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阐明环境中化学致癌物对机体长期多次作用特征是制定其卫生标准的重要问题。作者在非纯种大鼠身上用气管注入法观察不同期限、不同剂量的苯并花对肺癌发生的影响。
It is an important issue to formulate their health standards to clarify the long-term characteristics of chemical carcinogens in the environment on the body. In non-purebred rats with tracheal injection method to observe the different duration, different doses of benzfolia on the impact of lung cancer.