before-after measurement 事前及事后测定
This permits calculating the CPU cost of a message flow as the difference in CPU time before and after a measurement.
这允许根据测量前后的时间差异计算消息流的CPU成本。
After a relay is closed, it's important to allow sufficient settling time before taking a measurement.
在继电器被闭合后，在进行测量之前要留有足够的稳定时间，这点非常重要。
Based on technical measurement of a certain fan before and after alternation, energy consuming and noise are compared respectively. The economic and technical analysis is made too.
通过对具体主通风机改造前、后的技术测定，对能耗和噪音进行了比较，并进行了经济和技术分析。
应用推荐