合理确定参数的容差是产品质量设计中的一个重要问题。
In product quality design, an important problem is how to determine tolerance of parameters appropriately.
在差分gps系统的应用中，基准站的精确定位是一个重要问题。
It is important to locate the base station in DifferentialGPS system precisely.
网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。
Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.
网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。
Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.
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