过程控制

The methods for controlling transformer noise are introduced: for noise source control,using high-quality silicon-steel sheet,and adopting effective measures in transformer design,techniques and installation;for noise propagation control,adopting muffler device,sound insulation board and isolation booth,etc.to enhance noise attenuation.

详细介绍了变压器的噪声控制方法，在噪声源控制上选用优质高取向硅钢片，在设计、工艺和安装等诸多方面采取有效措施降低噪声；在噪声传播过程中采用缓冲装置、消声法、设置隔音层、隔音室等方法增大噪声在传播过程中的衰减以降低噪声。

The effect of the addition of the crystal seed in the jarosite preciptation was investigated and the results showed that the crystal seed would accelerate the crystallizing rate of jarosite formation, which convert the reaction mechanism from the crystallization kinetic rate control into the chemical reaction kinetic control.

阐述了晶种加入对沉矾影响的过程机理，认为晶种的加入加快了沉矾反应的结晶速度，使反应由结晶的动力学控制过渡到化学反应动力学控制，足量晶种加入情形下沉矾过程的活化能为94.66KJ／mol，表明了氯化物体系铁矾沉淀较硫酸盐体系中更易进行。

With the development of control theory and technology, more and more control loops are applied in the process industry.

随着控制技术的不断发展，生产过程自动化程度不断提高，工业过程中采用的自动控制回路也就越来越多。

Centrifugal energy saving analysis and measures: 1 improve the efficiency of centrifugal pumps a first step, in the selection of comparison, when many suppliers Selection program, in considering the cost-effective choice as far as possible under the premise of efficient programs; the second step , accredited professionals must Mill producers, affecting the pump efficiency of the key components such as impellers, pump body, pump cover, diversion devices, such as the manufacture of quality producers, especially for the airfoil impeller , outlet angle, leaves the sub-degrees, the shape of flow channel, to control the quality of finish, etc., so that products are delivered in the current production under the conditions of highly efficient products; the third step, the scene in the production of installation and debugging process, pump to ensure a solid foundation, with the driving machine for good, before and after valve flexible piping layout design is reasonable, on-site control is feasible and safe, the complete and accurate monitoring instrumentation to ensure that pump operation can carry out real-time monitoring; fourth step , are at long-term operation of water pumps necessary to pay attention to the equipment inspection and found anomalies reflect real-time reporting, in the normal minor repairs, overhaul cycle, to deal with the replacement of wearing parts inspection to ensure the pump's long-term safe and efficient operation.

第一步，在选型时多比较各供应商的选型方案，在考虑性价比的前提下尽量选用效率高的方案；第二步，派驻一定的专业人员驻厂监制，对影响水泵效率的关键零部件如叶轮、泵体、泵盖、导流器等的制造质量进行监制，尤其对叶轮的翼形、出水角、叶片的分度、流道的形状、光洁度等质量进行控制，使交付的产品是在当前的生产条件下的高效率的产品；第三步，在生产现场的安装调试过程中，要保证泵的基础牢靠，与驱动机对中良好，前后阀门开关灵活，管道布置设计合理，现场控制安全可行，各运行监控仪表齐全准确，保证泵的运行过程能够进行实时监控；第四步，是在水泵的长期运行中要注意对设备的点检，发现异常情况即时反映汇报，在正常的小修、大修周期中，应对各易损件进行检查更换，保证泵的长期高效安全的运行。

The control circuit made up of double monostable circuit IC has realized some remarkable functions, such as cycle control , zero crossing trigger, and preventing from repeated and error trigger.

所设计的控制电路，利用双单稳电路 IC，实现了点焊过程周波控制、过零触发，以及防重触发和误触发功能，保证了焊接过程稳定、可靠。

The control of pH neutralization process, having highly nonlinear nature, can be very difficult to achieve.

对于pH 中和过程的控制，由于其本身具有严重的非线性特性，因而对于此过程的控制十分困难。

SQL Server database used by the query language called Transact-SQL, SQL Server is the core, Transact-SQL strengthen the original SQL keywords for data access, storage and handling, and other functions, Transact-SQL expanded Process control designation, so that you can facilitate the preparation of the powerful storage process, they kept in the server side, pre-compiled and that the implementation rate is very block, the trigger is a special storage process, SQL Server database to ensure the integrity of quote , You can create insert, delete and update the trigger to control the relevant data in the table shown in the insert, delete, and update, you can also use the rules, default and restrictions, to assist the new Numerical applied to the table!

SQL Server所使用的数据库查询语言称为Transact-SQL，它是SQL Server的核心，Transact-SQL强化了原有的SQL关键字以进行数据的存取，储存及处理等功能，Transact-SQL扩充了流程控制指定，可以使你方便的编写功能强大的存储过程，他们存放在服务器端，并预先编译过，执行速度非常块，触发是一种特殊的存储过程，用来确保SQL Server数据库引用的完整性，你可以建立插入，删除和更新触发以控制相关的表格中对数据列的插入，删除和更新，你还可以使用规则，缺省以及限制，来协助将新的数值套用到表格中去！

The group's research interests include: regulation and molecular control of blood pigment function and functioning, adaptive physiology of sharks and rays, hormonal control of osmoregulation and the physiological and ecological changes in the evolution to life on land, and the evolution of blood function in the crustacean invasion of land etc.

该研究组的研究领域包括血色素功能的协调和分子控制，鲨鱼和鲅鱼的适应生理学、陆地生物进化过程中渗透调节的荷尔蒙控制和生理生态变化、甲壳类动物侵入陆地过程中血液功能的进化等。

Article 47 An enterprise shall, in a written or any other appropriate form, properly preserve relevant records or data generated in the course of the establishment and application of internal control so as to ensure that the establishment and application of internal control are provable.

第四十七条企业应当以书面或者其他适当的形式，妥善保存内部控制建立与实施过程中的相关记录或者资料，确保内部控制建立与实施过程的可验证性。

The results showed that: 1 during drying, the heat transferred between process gas and cut tobacco before feeding point in HXD could be scaled by ', which is the reciprocal of temperature difference of process gas...

结果表明：①在干燥过程中，HXD喂料点前工艺气流与烟丝间的换热量可用干燥前后工艺气流温差的倒数来衡量；②在其它控制参数不变，只改变排潮模式的情况下，设置为手动控制排潮时，干燥过程的换热量总是较低；③当设置为自动排潮且HXD蒸气注入量超过1800kg/h时，工艺气流的干燥能力随着注入量的增大而降低。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。