The increase in brain metabolism observed in the experiment may be an underestimate, because cell phones emit more radiation when a person is talking, Lai says.
Lai则表示通过实验观察到的脑物质代谢增长水平可能被低估了，因为当人们使用手机通话时，手机将放射出更多辐射。
Brain tumors grow slowly and may not be detected for more than a decade, "warns Henry Lai, Ph. D., professor of bioengineering at the University of Washington, in Seattle."
西雅图市华盛顿大学的生物工程学教授亨利·拉伊博士警告说：“脑肿瘤发展缓慢，十几年内可能查不出来。”
The LAI and leaves biomass may be better indicators than density for estimating and evaluating water consumption of vegetation, since it is more biological based.
估计和评价植被蒸散耗水时，用叶面积指数或叶生长量指标可能比密度更符合生物学逻辑。
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