In this paper, index's weight of each channel of particle counter is firstly used to quantify the influence force and its validity has been proved by experiments.
文中首次尝试采用通道指标权重对其进行定量描述，并对该指标的有效性进行了试验验证。
Obviously, though the validity of it has been proved, CET-4, which is limited by its large scale, is not an appropriate test for the purpose of testing communicative competence.
尽管大学英语四级考试测试的效度已被证明，但因为全国范围的大规模限制，无论从其表面效度、结构效度、内容效度还是同期效度上，都不能说它适合测量应试者的英语交际能力。
Obviously, though the validity of it has been proved, CET-4, which is limited by its large scale, is not an appropriate test for the purpose of testing communicative competence.
尽管大学英语四级考试测试的效度已被证明，但因为全国范围的大规模限制，无论从其表面效度、结构效度、内容效度还是同期效度上，都不能说它适合测量应试者的英语交际能力。
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