Mr. Howarth included methane losses associated with flow-back and drill-out processes in hydraulic fracturing and other unconventional gas drilling techniques.
霍沃斯先生将在水力压裂法和其它非传统天然气开采技术中返排和钻出过程中所泄露的甲烷包含在了其计算中。
This paper studied liquid steel flow property in mould of super low head slab CC with hydraulic model and mathematics model.
本文应用水力学及数学模型的方法研究了超低头板坯连铸结晶器内钢水流动特征。
Hydraulic systems use cartridge valve integrated control system, integrated cartridge valve control system has good sealing, flow capacity, small pressure loss characteristics etc.
液压系统选用插装阀集成控制系统，插装阀集成控制系统具有密封性好，通流能力大，压力损失小等特点。
The digital flow rate valve regulates digitally system flow rate to implement speed regulation in hydraulic system.
发数字式流量阀采用数字控制方式，调节系统流量以达到液压系统调整目的。
On the basis of theoretical linear model, the paper studies the influence of input flow on operating parameters of shock mechanism for hydraulic rock drill, and a series of brief formulae are derived.
在理想线性模型的基础上，研究了输入流量对液压凿岩机冲击机构工作参数的影响，得到了一组简明公式。
Hydraulic engineering is concerned is concerned with systems involving the flow and control of water or other fluids.
水利工程涉及到水或其他流体的流动与控制系统。
The optimal hydraulic design can effectively improve the outlet flow pattern of suction box to ensure better flow conditions for pump and raise the efficiency of pumping system substantially.
进水流道水力设计优化可有效地改善进水流道出口流态，确保水泵有良好的进水条件，大幅度提高水泵装置效率。
Derives an equation set to reveal the influence of water flow variation on temperature of the heated room and permitted fluctuation of the hydraulic imbalance degree of pipeline.
推导出了水流量变化对供暖房间温度的影响以及管路水力失调度允许波动的取值范围，指出循环水量减小时对室温的影响较水量增加时为大。
The pulsate pressure in high speed flow water will influence the safety of water construction, and the eigenvalue of the pulsate pressure should be confirmed by hydraulic model testing.
高速水流中的水流脉动对水工建筑物的安全运行存在很大的影响，水流脉动压强的特征值一般需通过水工模型试验确定。
The flow field of double-row annular cascades of hydraulic turbines is studied by means of digital analysis in combination with model tests.
采用数值分析与模型实验相结合的方法，对水轮机导水部件双列环列叶栅流场进行了分析研究。
This paper presents an one-dimensional homogeneous flow model for thermal-hydraulic transient behaviour of PWR steam generators.
本文介绍了压水堆核电厂蒸汽发生器的一维均相流瞬态分析模型。
It is very convenient for gauging the energy, frequency and flow of hydraulic shock device.
使用该系统，可以很方便地测量冲击器的能量、频率、流量等重要指标。
Compared with traditional hydraulic calculation formula of opposite flow sedimentation, load formula of sedimentation wall was analyzed, and the way to improve load was provided.
并与传统异向流斜管沉淀水力计算公式进行了比较，分析了沉淀墙的负荷公式及提高其负荷的途径。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
This paper deals with the physical characteristics of the transient of flow parameters in hydraulic system when fluid flows through pipe junction with different diameter.
本文分析研究了液压系统中液流在连接不同直径管道的装置处，流动参数发生瞬变的物理特征。
The flow conductivity of propping agent in hydraulic fracture is affected by many kinds of factors.
水力裂缝中支撑剂的导流能力受多种因素的影响。
This formula based on the character parameter of relative flow ratio and relative hydraulic disturbance degree.
该公式以相对流量比和相对水力失调度为特征参数。
The separation flow is three dimensional in hydraulic machine. The pressure gradient in cross direction produces secondary flow in boundary layer.
水力机械的分离为三维流动，三维流动的侧向压力梯度产生边界层的二次流动。
The stepless speed of press hydraulic system with rapidly high flow is a difficult and challenging problem.
液压机快速大流量液压系统的无级调速是一个有待解决的技术问题。
Static state hydraulic disorder exists in fixed flow system and can be solved by static state hydraulic balancing valve.
定流量系统只存在静态水力失调，通过安装静态水力平衡阀来解决。
Leading energy loss of the flow valve in hydraulic rock drill was analyzed and its formula was presented.
分析了液压凿岩机配油阀的主要能量损失，给出了其计算表达式。
The basic flow patterns and hydraulic characteristics, flow velocity and pressure distribution characteristics, have been investigated on a model of the level rotary flow discharge tunnel.
通过模型试验，研究了水平旋流泄洪洞的基本流态、基本水力特性、流速分布与压强分布特性。
Fluids flow down a hydraulic gradient, from points of higher to lower hydraulic head.
流体向水力梯度下游的流动是从水力压头较高处到水力压头较低处。
The only power source is a hydraulic system to provide generator with required hydraulic fluid flow at demanded pressure.
驱动它运转的唯一动力是所需要的液压流量及压力。
Separations seriously affect the flow behavior of hydraulic machinery and is intimately connected with hydraulic losses.
分离的产生将严重影响水力机械的流动特性，流动分离与水力损失密切相关。
This type of flow sensor is widely needed in the flow control systems and has been successfully used in the home-produced prototype hydraulic elevator with flow electrical feedback control system.
作者研制的动态流量计是国内流量控制系统中所缺乏和急需的器件，已成功地应用在国产液压电梯流量反馈控制样机上。
The influence of outlet circulation of mixed-flow pump on the hydraulic performance of the outlet pipe was studied in this dissertation.
本文主要研究混流泵出口环量对泵出水管道水力特性的影响。
In this paper, research on data process and database creating method is conducted during the design of hydraulic turbine and the hydraulic design database for flow parts is built.
本文作者探索了水轮机选型设计过程中的数据处理及数据库的建立方法，并建立了水轮机过流部件水力设计库。
In this paper, research on data process and database creating method is conducted during the design of hydraulic turbine and the hydraulic design database for flow parts is built.
本文作者探索了水轮机选型设计过程中的数据处理及数据库的建立方法，并建立了水轮机过流部件水力设计库。
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