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production stages
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  生产阶段
     This paper focuses on the choice and determination of reliability testing methods for automotive products during developing and production stages.
     着重介绍了汽车产品在研制和生产阶段可靠性试验方法的选择和确定。
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     On the basis of traditional calculation methods of gas well productivity, equations for un-steady state flow of gas wells and Laplace transform, a productivity calculation method for gas wells at various production stages and under different formation pressures were studied.
     在详细研究前人有关气井产能的计算方法基础上,从气体不稳定渗流方程入手,根据Laplace变换原理,得出了气井在不同生产阶段和不同地层压力条件下的产能计算方法。
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     Xian Aircraft Company has put IE into subcontracting production of tail fins for Boeing-737-700, starting with management and production process preperation, and a detailed plan is presented for IE application in production stages.
     西安飞机工业公司在执行波音737-700垂尾转包生产合同中,从项目管理和工艺准备入手,进行了实施工业工程的实践,并对如何在生产阶段实施工业工程提出了具体方案。
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     The relevant elements in the matrix for simplified life cycle, environment burden in the process of iron and steel raw material production and environment burden of original manufacture and remanufacturing for mechanical products (parts) are analyzed. The results show that the resource environment advantages of remanufacturing products is reflected on raw material acquisition and production stages.
     通过简式寿命周期评价矩阵中有关元素的分析、钢铁原材料生产过程的环境负荷分析、机械产品(零部件)原始制造与再制造中的环境负荷分析,表明再制造产品的资源环境优势集中体现在其原料获取和产品生产阶段
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     Then it makes a division of coal production stages and analyses the law between the input and output in the process of short-term production,Thus the rational technical innovation time can&decided to direct the practice of coal poduction.
     对煤矿企业的生产阶段进行划分,分析在短期生产过程中投入与产出的规律性,从而确定技术改造的时间,指导企业生产实践。
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  开采时期
     The Change of Crude Oil Components in Different Production Stages
     油层不同开采时期原油组分变化特征
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     The PVTCOG application software developed by ourselves and the PR state equation were employed in a real closed condensate gas reservoir to study the depletion performance in different production stages, the influence of dry gas, the nitrogen and carbon dioxide on the dew point pressure, the gas injection time, the condensate oil reserve and the condensate oil recovery.
     以一个真实的凝析气藏为例 ,使用自行开发的PVTCOG软件和PR状态方程研究和对比了凝析气藏定容衰竭不同阶段 ,注干气、氮气及二氧化碳对露点的影响、对注气时机、对凝析油储量和凝析油采收率的影响。
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     Restricted by computer speed, currently, the system is more suitable for those enterprises with simple product structure and fewer production stages.
     受运算速度的制约 ,该系统目前较适合产品结构简单、生产工序较少的企业。
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     ABSTRACT The forest-grassland ecosystem in agronomy refers to the various aspects of the pre-primary production, plant production, animal production and post-animal production stages.
     森林-草地生态系统有它的农学含义,涉及前初级生产层、植物生产层、动物生产层和后动物生产层四个生产层的许多方面。
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     From the stress point of view, the reasons for cracking in various production stages was analyzed, according to which the soaking process was improved, and the concrete measures to decrease crack reject during rolling, slowly cooling and grinding was suggested.
     从应力角度分析了加工车间H13钢锭生产过程各主要工序可能产生裂纹的成因 ,在此基础上改进了均热工艺 ,并提出了轧制、缓冷及修磨等工序降低裂纹废品的具体措施。
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     Greater changes are taken place in the internal reservoir structures and reservoir parameters for prolonged production by waterflooding in a low permeability reservoir,rock compositions are also changed by strong water flushing with the increase of waterflooding magnitude Research on the reservoir structures of different production stages are conducted on block Wen 85 of Wenliu area The result shows that the reservoir porosity and permeability increase,oiliness becomes poor with the advancement of oilfield development by waterflooding
     低渗油藏长期注水开发 ,储层内部结构和储层参数都发生了较大的变化 ,并且随着注水程度的增大 ,强烈水洗使得岩石成分有所改变。 对文留地区文 85块不同开发阶段储层空间结构进行了研究 ,结果表明 ,随着油田的注水开发 ,储层孔隙度增大 ,渗透率增大 ,含油性变差
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  production stages
Strength formation for artificial structures is a complex process whose control may be accomplished in different production stages.
      
The optimum areas of application of nonwovens obtained in different production stages were determined.
      
Heterocapillarity of Nonwoven Cloth in Different Production Stages
      
Processing conditions in the various production stages as a factor in the regularity of the properties of viscose rayon
      
We examine periodic pacing in a multi‐stage non‐synchronous production system where production stages are distributed over various locations.
      
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The relation of the succession of bacterial physiological groups and substrate transformation to the methane production rate in bio-gas fermentation was investigated in the experiment under a constant temperature(30℃) incubation in an anaerobic fermenter where the fermenting substrate were added at once in the beginning.During the 84 day's fermentation period, on the basis of gases production,3 stages were observed:(1)The starting stage, beginning from setting up, lasted for about 20...

The relation of the succession of bacterial physiological groups and substrate transformation to the methane production rate in bio-gas fermentation was investigated in the experiment under a constant temperature(30℃) incubation in an anaerobic fermenter where the fermenting substrate were added at once in the beginning.During the 84 day's fermentation period, on the basis of gases production,3 stages were observed:(1)The starting stage, beginning from setting up, lasted for about 20 days, and produced mainly CO_2 with only very little methane.(2)The main gas production stage, beginning on the 20th day with increasing methane production daily, reached its maximum on the 36th day. This stage lasted for about 28 days, 1/3 of the total fermentation period, with more than 50% of the total methane produced.(3)The prolonged stage lasted for about 36 days with a gradually lowering rate of methane production daily. The rate of methane production was subjected principally to the increasing activities of methane producing bacteria and to the activities of anaerobic acid producing bacteria on the decomposition of various carbohydrates including hemicellulose and cellulose, as well as to the activities of anaerobic proteolytic bacteria which produced sufficient ammonic to maintain the pH in the fermenter above 7.The methane production was related to the content of total votatile acids in which the acetic acid content controlled directly the rate of methane production.This content discussed in the paper Will possess a certain signifficance in the effective control of the fermentation process and the raising of the rate of methane production.

一次投料的恒温(30℃)发酵过程,大体上可以分发酵启动期、盛产气期、持续产气期三个阶段。其中第二阶段自高峰开始上升至高峰下降末期,在时间上大致为发酵全过程的三分之一,产气量占总产气的50%以上,日产气效率最高。发酵过程中,可以明显地看出不同发酵阶段优势微生物生理群的演替及其所引起的物质转化对产气效率的影响。

This paper reviews the development of the technology of metal-backed moulding from scientific research stage into pilot production stage since1976. It describes the four processes named metal-backed moulding, pneumaticdesulfurizing, spheroidizing in mould and cast waste heat normalizing, and the2t coreless industrial frequency induction furnace with pneumatic pouring deviceand nondestructive testing equipment. Finally, the economic benefit obtained fromthe use of the new technology and equipments...

This paper reviews the development of the technology of metal-backed moulding from scientific research stage into pilot production stage since1976. It describes the four processes named metal-backed moulding, pneumaticdesulfurizing, spheroidizing in mould and cast waste heat normalizing, and the2t coreless industrial frequency induction furnace with pneumatic pouring deviceand nondestructive testing equipment. Finally, the economic benefit obtained fromthe use of the new technology and equipments and its prospects are estimated.

引述了1976年以来金属型覆砂铸造综合性课题从科研转入中间生产的概况,分别介绍了金属型覆砂造型、气动脱硫、型上球化、铸态余热正火等四项工艺和两吨无芯工频感应气压浇注炉、无损检测两项设备的基本情况。最后归纳了这些新工艺、新设备运用以后能取得的经济技术效益,以及它的今后展望。

Lamadian oil field in Daqing is the largest gas cap oil field developed in China.According to the characteristic of the oil reservoir,this oil field is de- veloped with a principle that the oil should be produced first while the gas cap gas should be kept nearly stable by a balance of the pressures in the gas cap and the oil region.The oil reservoir is developed with a 9-Apot well pa- tten and the gas-oil contact is maintained at its original position (or nearly so) by a reasonable adjustment of the pressure...

Lamadian oil field in Daqing is the largest gas cap oil field developed in China.According to the characteristic of the oil reservoir,this oil field is de- veloped with a principle that the oil should be produced first while the gas cap gas should be kept nearly stable by a balance of the pressures in the gas cap and the oil region.The oil reservoir is developed with a 9-Apot well pa- tten and the gas-oil contact is maintained at its original position (or nearly so) by a reasonable adjustment of the pressure and amount of the water inj- ected and a proper well perforation program.Moreover,a monitor system has been established.Thus the bypassing of crude oil and gas is well controlled during 14 years of production operation of this oil field.This paper gives a summary of the techniques for monitoring,controlling the gas-oil contact as well as the techniques used in the adjustment of the development program. It is demonstrated a trend of gas cap shrinkage instead of expansion becomes obvious as the reservoir pressure increases gradually during the high water cut production stage.Thus the adjustment and control techniques wore complica- ted and the treatment of the gas should be operated in a unified basis.

大庆喇嘛甸油田是我国目前开发的最大一个气顶油田。根据本油田储集层的分布特点,确定了油区采用正规的反九点面积井网注水,暂缓开采气顶气;通过调整油、水井的工作制度,实现油、气区压力平衡,维持油气界面相对稳定的开发原则,并制定了相应的射孔原则,建立了气顶动态监测系统。油田开发十四年来,成功地控制了油气互窜。本文就喇嘛甸油田开发过程中,防止油气大量窜流的监测、控制和调整的方法作一总结。并认为随着油区进入高含水开采,地层压力不断上升,使气顶由扩张的趋势变为收缩的趋势,因此,目前的控制、调整工作日益复杂化,应从整体上考虑对气顶的处理方法。

 
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