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1)  postprotective slug
后保护段塞
1.
The research shows that the concentration and size of the polymer slug must be optimized, and continuous slug in the process of polymer flooding must be ensured; the additional frontal slug and postprotective slug before and after the polymer slug are unnecessary.
研究表明 ,在聚合物驱油过程中 ,重要的是优化聚合物段塞的浓度和段塞大小及保证聚合物段塞不发生中断 ,在聚合物段塞前后附加前缘段塞和后保护段塞是没有必要
2)  standby transformer protection
多段后备保护
1.
In standard of the Regulations for Operation and Calculation of Relay Protectorin for 3 - 110 kV Electric Power Net, the setting calculation principle of two - time - limit and three - time - limit in one section is specified, but nowadays the standby transformer protection has developed into one with two or three sections.
通过对110kV高村变的变压器多段后备保护的整定计算及与备用电源自投装置的配合,对变压器多段后备保护的整定计算进行了探讨。
3)  protective time slot
保护时段
1.
Based on the channel model of Multi-pulse Position Modulation (MPPM) without background noise, the expression of channel capacity, the expression of information transmission rate and the expression of energy efficiency of MPPM with protective time slot were derived according to information theory.
基于多脉冲位置调制(MPPM)在无背景噪声下的信道模型,根据信息理论,推导了有保护时段的光MPPM信道容量的表达式,在此基础上又推出了MPPM的信息传输速率和容量能量效率的表达式。
4)  segment-protection
段保护
5)  protect means
保护手段
6)  three protected mode
三段保护
补充资料:段塞驱油剂
分子式:
分子量:
CAS号:

性质:在三次采油过程中,使用化学方法,即注入表面活性剂-聚合物或碱性水和聚合物,以降低界面张力,从而降低束缚残余油的毛细管力,以及保持有利的水-油的流度比,达到有效地驱替集油带,提高采油的收率。为了节省加入的化学品,可将注入化学品和注水交替进行,这就称为段塞。所加入的化学品称为段塞驱油剂。

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