An Investigation of Dimensional Tolerance of Castings in Several Investment Casting Factories Study of Conformance Test for Size Tolerance

The Influence of Size Tolerance and Reflectivity of the Surface on the Characteristics of Compound Parabolic Concentrators

尺寸误差及表面反射率对复合抛物面聚光器特性的影响

Technical factor of influencing size tolerance of cold stamping for sheeting material was analyzed and economic tolerance of cold stamping was mentioned.

分析了影响板料冷冲压件尺寸误差的工艺因素，提出了冷冲压件的尺寸经济精度。

With the change of scanning speed, the size tolerance of the PP part exhibited a minimum.

随着扫描速度的变化，试件翘曲量存在极小值。试件的尺寸误差随着激光功率增大、扫描速度降低或铺粉厚度减小而降低。

This paper discusses the method of defining size tolerance in the working procedure, makes use of craft technique to define tolerance and raises the simplified calculation of craft technique.

论述工序尺寸公差的确定方法及利用工艺能力确定工序尺寸公差，给出工艺能力的简化计算方法。

Other special size tolerance may be satisfied on request.

特殊尺寸公差可由买卖双方协议。

The sizing process must be taken in order to eliminate the size tolerance and roundness one after the seamless pipe rolled and heat treated.

为消除无缝钢管的轧制和热处理所产生的尺寸和椭圆度误差等缺陷，一般要采用定径工艺。

We calculate and analyze the mutual compensation between size tolerance and form& position tolerance while applying the minimun material requirement to the tested essential factors and standard key elements.

对被测要素、基准要素在应用最小实体要求时，尺寸公差与形位公差相互补偿问题进行计算分析。

During the intermediate annealing, foil material rolling, the effective action has been taken to guarantee the size tolerance;

在中间热处理、箔材轧制等环节采取有效措施保证了尺寸公差；

In the third chapter, mathematical model of size tolerance, form tolerance, orientation tolerance and location tolerance of cylindrical feature was established.

第三章：建立圆柱要素尺寸公差、形状公差、定向公差和定位公差的数学模型。

In the extruding process, not only the good properties is needed but also the high degree of accuracy of the size tolerance and shape-position tolerance. All these features increase the degree of die design.

一方面型材挤压成形难度大，另一方面型材的尺寸公差和形位公差精度高，这些特点对挤压模具的设计加大了难度。

As guiding principles, the tolerancing principles deal with the relationship between form-position tolerance and size tolerance in precision design.

公差原则是进行精度设计时处理尺寸公差与形位公差关系的指导原则。

Quality standard: thickness tolerance, size tolerance, polished degree, color are up to exporting standard.

质量标准：厚度误差，尺寸误差，磨光度，以及颜色统一度等达到出口标准。

Based on the analysis on the size tolerance rules and tolerance range usage ratio of three kinds of tolerance rules, give out the selection rules.

通过对三种公差原则的尺寸公差值和公差带利用率的分析，给出应用公差原则的选择原则。

The statistical calculation and judgement of size tolerance

尺寸公差的统计判断与计算

Design requirements for the size tolerance of size features and related geometrical tolerances of the central feature, including the envelope requirement, maximum material requirement and least material requirement.

相关要求是尺寸要素的尺寸公差与其相应的中心要素的形位公差相互有关的设计要求，包括：包容要求、最大实体要求和最小实体要求。

Different dimension constraint modes are de tailed. Third, a generic mathematical model of size tolerance is deduced based on mathematical definition systematically which can interpret the semantics of size tolerance exactly and completely.

从公差的数学定义出发，系统地推导了广义的尺寸公差数学模型，准确完整地表示出了尺寸公差的语义。

One car come, one car go, tow car peng peng, one car die.

一车来, 一车去, 两车碰碰, 一车死.

Quantitative Adsorption of Ammonium Salt of Polyacrylic Acid on Nano size Y TZP

聚丙烯酸铵在纳米Y-TZP上的定量吸附研究

Research on catalytic performance of small crystal particle size Y Zeolites

小晶粒Y型分子筛的催化性能

Effect of grain size of zeolite Y on its catalytic performance in liquid phase alkylation of benzene with ethene

Y型分子筛的粒径对其催化乙烯和苯液相烷基化性能的影响