现场控制

Study showed that the degree of expansion of marlite as the backfilling material should be controlled about 90.0%.Then according the effect of compaction test in different measures, the compaction parameter and the quality control index are provided.

研究表明，开挖出来的泥灰岩膨胀岩用作回填材料时，压实度宜控制在90%左右，并根据不同处理措施现场碾压的压实效果，提出了相应处理措施的施工碾压参数及施工质量控制标准建议值。

This paper presents the control and realization of Motor Control Center based on DeviceNet using PanelView terminal operator.

摘要 本文使用PanelView终端，对基于现场总线的马达控制中心进行控制并给出了具体实现。

Fieldbus is an opening, digital and multipoint communication network at the lower level of the factory automation hierarchy.

顺应这一形势发展起来的现场总线是当今自动控制和计算机网络领域发展的热点，它被称为开放式、数字化、多点通讯的底层控制网络。

In this paper, we mainly introduced the design procedure of the fuzzy auto-tunning PID control node based on the brief introduction of LonWorks, fuzzy control technology and MCGS, including the soft design and the hardware design. We realized the real-time monitoring to field data in the superior computer. This node is a host-based node.

本文在对 LonWorks 技术、模糊控制技术和 MCGS 组态软件进行简要介绍的基础上，重点介绍了模糊自整定 PID 控制节点的设计过程，包括软、硬件的设计，并在上位机中实现了对现场数据的实时监视。

The control system uses the PLC will be collected at the scene encoder signal, close to switching signals, the sensor signals at different angles for each part of the working conditions so as to control various parts of action or alarm output.

该控制系统用PLC将采集到的现场接近开关信号、传感器信号在不同角度范围比较各部分工作条件从而控制各个部分动作或报警输出。

how to effectively control the price of visas at the construction site is an important part of cost control.

施工阶段如何有效进行施工现场签证的价格控制，是造价控制的重要环节。

By means of comparing the testing data of temperature and stress with calculating result, summarize the effect of crack control measures and propound some useful suggestions for worksite.

通过对施工中温度、应力测试结果与设计计算结果的分析对比，讨论了施工现场温度控制措施的效果，并提出了裂缝控制的一些建议。

In order to tackle the difficulties including the sidetracking, the reentrance of the main hole, the well bore trajectory control, and the poor drillability of the formation, some technologies are put forward, such as the sidetracking technology of compound holes, the pipe string reentrance technology of main holes, the well bore trajectory control technology, and the drilling speed increasing technology. All the technologies have been applied to the field successfully, greatly shortening the drilling cycle and guaranteeing the safe and fast completion of the well.

针对悬空侧钻、主井眼重入、井身轨迹控制和地层的可钻性差等多个技术难点，提出了复合井眼悬空侧钻技术、主井眼管柱重入技术、井身轨迹控制技术和钻井提速技术等方法，在现场应用中取得了显著效果，大大缩短了钻井周期，保证了安全快速完井。

It is considered to be a revolution in the development of control sy...

现场总线控制系统是一种成熟的基于网络的控制系统。

Through the trial regression to the ratio of unit injection well control area,unit well control area and injection-production well number ratio and shirr formula and unit injection well volume rate of change increasing with unit injection well control area decreasing,then Waterflooding reservoir macroscopica well spacing density formula c.

油藏工程理论及现场实践均表明，注水开发低渗油藏其注水方式和注采井数比对注水波及体积及水驱采收率有较大影响，通过对注水井水驱控制面积、单井控制面积与注采井数比进行了试探性回归分析，再结合谢尔卡乔夫公式，推导出了水驱采收率、驱油效率、井网指数、注采井数比与井网密度的关系式，从而建立了水驱油藏宏观井网密度公式。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。