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毒性测试
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毒性测试
通过一系列检测技术和手段获得足够可靠的数据,以确定化学物及其产品的毒性特征的方法。即通过应用生理学、药理学、生物学、生物化学和病理学等基础学科的理论和技术,测试化学物对生物体的损害作用及其作用机理,确定化学物质的毒性特征,从而预测其对人体和生态环境的危害,为确定安全限值(如卫生标准)和采取防护措施等提供科学依据。
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Simplon Railway Tunnel
Simplon Tunnel
simply additive functional
Simply Annotated Ci Poems Selected from the Tang and Song Dynasties
simply connected
simply connected analytic group
simply connected covering
simply connected covering Lie group
simply connected domain
simply connected envelope
simply connected group
simply connected manifold
simply connectedness
simply connected region
simply connected Riemann surface
simply connected space
simply connected surface
simply consistent system
simply convergent filter
simply convergent sequence
simply convergent series
simply covered
simply elliptic singularity
simply generated
simply harmonic space
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