It is shown that the slope K of the self-priming performance curve is the estimation criterion to describe the self-priming ability of different self-priming pumps.
文中指出可以自吸性能曲线的斜率K，作为对不同型式自吸泵及其自吸能力强弱的评定值。
For no material is used when "estimation method" is completely against the history at least criterion.
而对于没有资料时使用的“估算”方法，则完全违背了历史学最起码的准则。
It presents a useful methodology of cell coverage estimation for TD-SCDMA cellular network based on a duration outage criterion, and gives quantitative results.
基于持续服务中断原则对TD-SCDMA系统的反向链路小区覆盖范围进行了理论分析，并给出了数值结果。
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