• The invention relates to an acaricide composition and the effective ingredient of the acaricide composition comprises tebufenpyrad and fenbutatin oxide in a mass ratio of 50:1 to 1:80.

    发明涉及一种组合物,组合物有效成分吡螨胺丁锡组成, 吡螨胺和苯丁锡质量比为50∶1~1∶80。

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  • Through model tests, it has been found that the effective mass coefficient for the soil is around 0.2 for artificial islands with height-to-diameter ratio being smaller than 1/3.

    地震时人工岛内回填只有一部分有效质量参与地震响应,通过模型试验,高径小于1/3的人工岛回填土有效质量系数0.2左右。

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  • For example saturation density, bulk binding energy, symmetry energy coefficient, incompressibility, and the ratio of effective nucleon mass to free nucleon mass at the saturation density.

    比如饱和密度结合能,不可压缩模量,对称系数以及饱和密度时核子有效质量与核子自由质量比值

    youdao

  • For example saturation density, bulk binding energy, symmetry energy coefficient, incompressibility, and the ratio of effective nucleon mass to free nucleon mass at the saturation density.

    比如饱和密度结合能,不可压缩模量,对称系数以及饱和密度时核子有效质量与核子自由质量比值

    youdao

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