We analyzed more than 60 examples from our 20 years stress and strain data that coincide with earthquakes in Hebei province and its adjacent area with statistics.
从我省应力应变台站20多年的资料中，选取对应河北省及其邻近地区中强以上地震的60多个实例进行了统计分析。
Objective To evaluate the sensitivity of cell lines to poliovirus used in Hebei Provincial Polio Laboratory (HBPPL) and to prepare standard strain under the Quality Control (QC) of HBPPL.
目的评价河北省疾病预防控制中心脊髓灰质炎（脊灰）实验室所用细胞系对脊灰病毒的敏感性，制备河北省脊灰实验室质量控制的标准毒株（QC）。
Objective To evaluate the sensitivity of cell lines to poliovirus used in Hebei Provincial Polio Laboratory (HBPPL) and to prepare standard strain under the Quality Control (QC) of HBPPL.
目的评价河北省疾病预防控制中心脊髓灰质炎（脊灰）实验室所用细胞系对脊灰病毒的敏感性，制备河北省脊灰实验室质量控制的标准毒株（QC）。
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