前言： 介绍一种新兴的适用于制浆造纸废水的生物危害性监测的技术-蚕豆根尖微核检测技术。

The essay introduces a new technology of detecting biohazard of pulping effluent-Micronuces Test Technique in Vicia Faba.

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这对激光在生物和医学中的应用及其危害性的研究具有重要意义。

It is suggested that it is very important to study the application in biology and medicine, and its harmful effects of lasers.

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森林灾害是指在自然变异和人为影响对生物圈及人类社会产生危害性后果的事件。

The forest disaster mentioned here refers to the hazardous effect on biosphere and human society caused by nature and humans destroy.

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