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无可见不良作用剂量水平
释义
无可见不良作用剂量水平
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工学
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释
no observed-adverse-effect level
无可见不良作用剂量水平
在一定时间内、规定的暴露条件下,使用最灵敏的试验方法和观察指标发现的,与同一种属正常(对照)相比,一种物质不引起目标生物在形态、功能、生长、发育或寿命等方面出现任何不良作用改变的最大浓度或量。又称未观察到不良作用水平。通常以每千克体重的物质质量表示。
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three-dimensional sphere
three dimensional stacked memory
three dimensional symbol
three-dimensional torus
three-dimensional tracking
three-dimensional tracking, 3D tracking
three-dimensional user-interface
three-dimensional user-interface, 3D user-interface
three-dimensional visualization of mine
three dimensional waveguide
three-dimensional weaving
three-dimension classification
three-dimension design of concentrators
three dimension distribution
three dimension passive localization sonar
three-dimension printing
three dimension semiconductor
three-dimension semiconductor
three-dimension spectral classification
three dimension zonality
three dimentional polycondensation
three-dimentional printing
Three-directional Oil Exploration
three directional weaving
three-D NMR logging
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