The equations among start-up pressure gradient, water breakthrough time, oil recovery rate and injector-producer distance are established.2.
推导出油层启动压力梯度、见水时间和采油速度与注采井距的关系。 2、应用研究。
参考来源 - 低渗透油藏渗流机理及开发技术研究Laboratory findings shows that air-foam can greatly enhance oil recovery because it has blank off for oil reservoir. Angle of air injection has an effect on the breakthrough time at some degree.
实验结果表明,由于空气-泡沫对储层的封堵作用,能大幅提高水驱效果;气驱突破时间在一定程度上受注气倾角的影响,最终影响驱油效率。
参考来源 - 空气驱油实验研究The breakthrough time also had a good relationship with specific surface area of activated carbon fibers, and it could be used as one index to characterize the difference of specific surface area.
开始穿透时间和活性碳纤维比表面积之间也存在相关性,在一定程度上可作为表征活性碳纤维比表面积差异的指标之一。
参考来源 - 活性碳纤维的制备及其应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Other automakers chose to break all the rules and display cars that look ready to take flight or travel through time.
其他的汽车制造商选择打破所有的陈规，他们的车展示出来的好像是要去乘飞机或者是穿越时空的感觉。
It takes some time to break through the surface.
冲破表面，需要一点时间。
It was quite some time before they managed to break through the enemy's blockade.
他们花了好长时间才设法冲破敌人的封锁线。
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