The fracturing fluid for low permeability reservoirs shall be aimed at reducing filter loss and damage.
的 使用上应以降低滤失、减少伤害为重点。
It has less effect on the filter loss in increasing viscosity and shear, thus meeting the demands of fast and safe drilling relatively well. 1.
在提粘、提切的情况下，对滤失量影响较少，能较好地满足快速安全钻井的要求。
Removal of this file will result in loss of filter settings that differ from the built-in program defaults.
删除此文件将导致与内置程序默认值不同的过滤器设定丢失。
The synthesis of the cross coupled filter is from prescribed transmission zeros and return loss till the attainment of the coupling matrix of each cavity.
交叉耦合滤波器的综合从给定的传输零点和回波损耗出发，直到得到各腔体之间的耦合系数。
When applied to active power filter, this novel control scheme not only reduces the switching frequency and the switching loss, but also has better performance and robustness.
该控制策略在有源电力滤波器的应用，不仅大大减小了开关频率、降低了开关损耗，而且具有很强的鲁棒性和更好的控制精度。
With high chopping frequency and novel control strategy, the size of filter elements is reduced and switching loss of IGBTs drops.
由于采用了较高的斩波频率和新颖的控制策略，减小了滤波元件的尺寸，并降低了IGBT的开关损耗。
This paper deals with the basic demands for designing filter tube and the head loss occurring when groundwater enters into the filter from aquifer.
论述了滤水管设计的基本要求和地下水由含水层进入滤水管时的水头损失。
Proposed in this paper is a new method to reduce the switching loss of active power filter (APF) through adjusting the hysteresis band width.
提出了一种调节滞环宽度、减少有源电力滤波器(APF)的开关损耗的方法。
Installation filter in power system to control harmonic pollution could effectively reduce the system loss and avoid harmonic resonance or current amplification.
在电网中安装滤波器来治理谐波污染，可以有效地降低系统网损，能够避免谐波谐振或电流放大。
In order to effectively solve the problem that the loss of object information under occlusion causes the failure of tracking, moving objects tracking algorithm is presented based on Kalman filter.
为了有效解决运动目标遮挡时目标信息容易丢失从而导致跟踪失败的问题，提出一种基于卡尔曼滤波器的运动目标跟踪算法。
The commonly spatial adaptive noise filter can reduce the noise effectively, but at the same time leads to the loss of a large number of image edge detail information.
常用的空间自适应滤波方法在滤除噪声的同时，损失了图像中的大量边缘细节信息。
The major problems in this technology are PAC penetrating filter material layer and the great shorten of the filter cycle owing to the growth rate of filter head loss is so quickly.
该投加点面临的主要问题是活性炭穿透滤料层以及水头损失过快增长导致滤池过滤周期的大幅度缩短。
The novel output filter owns the advantages of simple circuit structure, easy realize, strong ability of surge suppressing and low loss.
该输出滤波器具有电路结构简洁、易实现、振荡抑制效果明显、损耗低等优点。
Changing the resistance of filter, it studies the connection of the average power and peak power loss with filter resistance.
改变滤波器电阻阻值，研究滤波器上平均功率损耗、峰值功率损耗与滤波器电阻阻值的关系。
The red filter, the loss-90 percent, only 200 lumens of red light.
经红色滤光片后，光损失90%，只剩下200流明的红光。
A new microstrip bandpass filter is proposed on the based of traditional square filter in this paper, which solves the problems of radiation loss and big volume in the traditional filter.
在传统方形双模滤波器的基础上，提出了一种新的微带带通滤波器结构。该结构很好解决了传统滤波器的辐射损耗和体积大等问题。
Firstly, it is profits from the adaptive filter algorithm in communication theory and achieved by evaluating and monitoring the status of message loss over a RTP - based network.
主要是采用RTP协议得到的已丢失报文和历史传输速率等信息，借鉴了无线通信原理中的自适应滤波算法，来预测评估视频传输的网络状态。
Last, a new microstrip bandpass filter is proposed on the basis of traditional square filter in this paper, which solves the problems of radiation loss and big volume in the traditional filter.
第三部分提出了一种新的微带带通滤波器结构。该结构很好解决了传统微带滤波器的辐射损耗和体积大等问题。
This kind of filter keeps a lot of merits such as compact structure, small insert loss, fine controllability, wide adjusting range, rapid response rate, good repetitiveness and so on.
这种滤波器结构简单、插损小、易于控制、可调范围宽、响应速度快以及重复性好。
Head loss through all EPDfilters will vary dependent upon filter media and how flow rate on start-up.
通过所有EPD过滤器的压头损失将随着过滤介质不同，流量不同而不同。
By making study on the characteristics of mass transfer efficiency - head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
从研究纤维束滤料的传质效率一水头损失特性出发，确定了纤维束过滤器的技术参数。
The results show that the UPF not only solves the linearized loss problem in the extended Kalman filter, but also is more accurate than the PF in the BOT.
仿真结果表明，对于纯方位跟踪问题，UPF不仅解决了扩展卡尔曼滤波器的线性化损失难题，而且与PF等粒子滤波器相比，具有更高的跟踪精度。
By making study on the characteristics of mass transfer efficiency-head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
从研究纤维束滤料的传质效率—水头损失特性出发，确定了纤维束过滤器的技术参数。
Simulations show that for a 4-symbol parallel width 2-symbol output width demodulator, the demodulation loss caused by time domain truncation in the parallel filter is about 0.6 dB.
应用该公式分析并行宽度为4个码元，输出宽度为2个码元的解调器，并行滤波的时域截断导致的解调损失约为0。
The precise expression for the insertion loss of the parallel coupled microstrip line output bandpass filter has been given on the basis of related mathematical models.
本文在相关数学模型的基础上，推导出平行耦合微带线和平行耦合微带线输出带通滤波器插损的精确表达式。
But the energy used to separate oxygen from air before burning is almost as great as that needed to filter out nitrogen afterwards, leading to a similar loss of efficiency.
但是燃烧前将氧气从空气中分离所需的能源几乎不亚于上述将氮气过滤所需的耗费，这就使得两者在效率损失上不相上下。
The pater applies the head loss model to design a set of computer control system, it can be realized automatic surveillance of deep bed filter process.
同时利用阻力模型设计了一套计算机控制系统，实现了深层过滤过程的自动化监测。
On the basis of field soil loss observations and laboratory soil features analysis, effects of multifunction filter on soil conservation and improvement were studied.
通过径流观测试验及土壤理化分析，论述了覆盖人工生草膜后，土壤流失的减少效果，以及土壤理化性质、土壤微生物活动的变化情况。
On the basis of field soil loss observations and laboratory soil features analysis, effects of multifunction filter on soil conservation and improvement were studied.
通过径流观测试验及土壤理化分析，论述了覆盖人工生草膜后，土壤流失的减少效果，以及土壤理化性质、土壤微生物活动的变化情况。
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