在本场景中，当数据刚刚被移到该表中时，它包含的信息要少于一个小时的，因为执行该步骤所需的时间导致了很小的时间差量。
When the data has just been moved into that table, it contains in our scenario information that is no more than an hour old, plus a small delta corresponding to the time required to execute the step.
建立了基于机械系统振动特征量的时间序列趋势预测GM（1，1）并进行了后验差精度检验；
The methods to enhance the modeling precision for the universal GM(1,1) applied to predicting the development of a mechanical pump based on vibration features were studied.
对于油质差、产液量高、多次长时间排液井层，常规的试井方法难以达到测产目的。
For the well layers with low quality, high fluid production and many times and long time flowing back, conventional well testing method is hard to reach testing objective.
应用推荐