质量控制

To design a basic evaluation model of attribute data in GIS, using various theory of data quality, this paper makes a deep analysis of quality control and evaluation of attribute data and brings forward a effective measure against error in attribute data. A good method is presented to improve precision of attribute data in this paper.

为了给出一个GIS属性数据质量评价的基本模型，结合已有的数据质量理论，本文对属性数据的质量控制与评价进行了深入分析与研究，给出了GIS属性数据质量控制的有效措施，并提出了提高属性数据存储、操作精度的方法。

The keystone of this research is to carry out the construction quality control with Shewhart control chart and some statistical method effectively used in foreign countries. On the other hand, we collected the construction data of Jiangsu province, analyzed with these methods, and found out some problems in highway construction.

本文研究的重点是采用各种控制图方法实现对施工过程的质量控制，并借鉴国外在施工质量控制及验收中采用的某些统计控制方法的成功经验，结合江苏省高速公路建设中近两年积累的施工数据，进行了有效的分析，分析过程中发现了目前该省高速公路施工中存在的一些问题。

Objective To establish a set of integrate criterion of quality control and critical quality control methods through the study of external quality assessment of reagents for detection of schistosome circulating antigen.

目的 通过血吸虫循环抗原试剂的外部质量控制研究，制定一套完整的质量控制指标和严格的质量控制措施。

Statistical process control method cent is statistical quality control and statistical performance monitoring two parts, what statistical quality control includes to process of single variable count is controlled and be based on statistic to return to is soft measure a technology, method of statistical performance monitoring includes advocate yuan analysis, independent the much more variable and umbriferous technology such as yuan of analysis and statistical control graph.

梗概： 回顾了统计过程控制的发展历史，介绍了统计过程控制的基本概念。将统计过程控制方法分为统计质量控制和统计性能监控两部分，统计质量控制包括单变量统计过程控制和基于统计回归的软测量技术，统计性能监控方法包括主元分析、独立元分析等多变量投影技术以及统计控制图。

Mainly presents the main quality control elements in delayed coking tower manufacturing process,such as prefabricating,constituting and welding,and presents quality control methods in practical manufacturing procedure,to guarantee the equipment quality to satisfy design and operating requirements.

主要介绍延迟焦化装置焦炭塔的预制、组对、焊接过程中主要质量控制环节，并结合实际介绍了所采取的质量控制措施，通过加强过程控制确保设备制造质量，以满足设计及使用要求。

Based on the composing characteristics of materials（ATB-30） and the application practice of asphalt stabilized macadam base in Zhashui-Xiaohe expressway,the technical standard of raw and proce-ssed materials,materials composition design,the construction technique and construction quality control key points of ATB-30 were studied and analyzed.

根据ATB-30材料组成特点，结合柞小高速公路实体工程应用情况，从原材料技术要求、组成设计、施工工艺以及施工质量控制要点等方面对ATB-30沥青稳定碎石施工质量控制进行研究和分析，并提出ATB-30沥青稳定碎石施工工艺及质量控制方法，可供工程实践参考应用。

The text expatiates two maters; One is system of pledge; the other is monitoring and controlling of material's quality. And this is also demand to department of quality monitor.

本文从质量保证体系、监管程序和进场材料质量控制二个方面阐述了监理人员如何对建筑材料进行质量控制，同时这也是质量监督部门对监理单位实施行为监督的一些要求。

This reference to the project quality management experience at home and abroad, from the preparation of project quality management plan, quality assurance, quality control, three-pronged approach to improving the quality of management of construction projects the dynamic studies, the establishment of quality control management system.

本文参考国内外工程质量管理经验，从工程质量管理计划的编制、质量保证、质量控制等三个方面入手，对提高建筑工程项目的质量管理进行了动态研究，建立了质量控制管理体系。

Aiming at the engineering problem that K welding machine is used to weld PD3 60kg/m rail during welding production at present, the quality of the joint falls short of the standard of TB/T1632-91 because of the objection of grey-spots in the welding joint, this paper analyses the element which influence the welding joint quality in detail from the stability of flash of the accelerating step of the rail, finds out the relationship between the stability of flash-butt welding and the quality of rail joint, provides the measure for controlling the quality of rail welding and some gist for establishing perfect controlling system of welding joint quality

针对目前焊轨生产中采用K型焊机焊接PD3 60kg/m钢轨，接头灰斑缺陷多，性能难以达到部颁标准要求的工程问题，对材质、焊接电压、焊接工艺对接头质量的影响进行研究，并从钢轨焊接加速烧化阶段的闪光稳定性入手，详细分析了影响接头质量的因素，找出了钢轨闪光焊稳定性与质量的关系，提出了控制钢轨焊接质量的措施，为建立完善的焊接质量控制体系提供了依据。

The quality control is an integral part of the quality management, which is engaged in meeting the quality requirements covering process control, take-over control and process improvement.

质量控制是质量管理的一个部分，致力于满足质量要求，包括过程控制、验收控制和过程改进。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。