公差

Combined with the measurement for characterized curves of discontinuous helicoidal surfaces, a method using grey theory to detect unwanted asperities in the dynamic measurement of cutting edges is studied.

建立了具有普遍意义的仪器综合定位误差与曲面测量误差的基本关系式，并以此导出了曲面形状公差与测量仪器精度的关系式。

Making full use of knowledge in manufacturing tolerance analysis combined with the beta distribution model is introduced and applied.

所用分析方法充分利用制造环境知识，把贝塔分布应用于公差设计。

Our process capability: Plates: FR4, High TG FR4, high CTI FR4, high frequency materials, halogen-free materials, aluminum and other low-rise Materials :2-20 layer of finished copper thickness :0.5-5 OZ finished thickness: 0.2 -6.0mm Minimum line width: 3mil Minimum line spacing: 3mil smallest shape tolerances:+/-0.1mm minimum finished diameter: 0.1mm maximum thickness aperture ratio: 12:1 wide minimum solder bridge: 4mil characters minimum line width: 5mil Minimum height of characters: 30mil Solder Mask Color: Green, black, blue, white, yellow, purple characters such as color: white, yellow, black and other surface processes: spray tin, lead-free HASL, Electroless gold plating Shuijin, OSP, chemical Shen tin, silver and other chemicals Shen Process: Goldfinger, blue gum, Blind-via/Buried-via, characteristic impedance control, rigid-flexible combination of reliability testing such as: Open / Short testing, impedance testing, solderability testing, thermal shock testing, metallographic analysis of micro-slice curvature Isoptera: 0.7% flame retardant Level: 94V-0

我们公司的制程能力：板材：FR4、高TG FR4、高CTI FR4、高频材料、无卤素材料、铝基材料等层数：2-20层成品铜厚：0.5-5 OZ成品板厚：0.2-6.0mm最小线宽：3mil最小线间距：3mil最小外形公差：+/-0.1mm最小成品孔径：0.1mm最大板厚孔径比：12：1最小阻焊桥宽：4mil最小字符线宽：5mil最小字符高度：30mil阻焊颜色：绿色、黑色、蓝色、白色、黄色、紫色等字符颜色：白色、黄色、黑色等表面工艺：喷锡，无铅喷锡、化学沉金、电镀水金、OSP、化学沉锡、化学沉银等其它工艺：金手指、蓝胶、盲埋孔、特性阻抗控制、刚柔结合等可靠性测试：开/短路测试、阻抗测试、可焊性测试、热冲击测试、金相微切片分析等翅曲度：≤0.7%阻燃等级：94V-0

Solution from a 10 mL buret.(tolerance ±0.02 mL). On the lower end of the buret attach

加入1滴酚酞*指示剂，用装在10 mL滴定管的氢氧化钠溶液滴定公差±0.02 mL

Add 1 drop of phenolphthalein* indicator and titrate with the sodium hydroxide solution from a 10 mL buret.(tolerance ±0.02 mL). On the lower end of the buret attacha disposable 1-200 L plastic tip.

加入1滴酚酞*指示剂，用装在10 mL滴定管的氢氧化钠溶液滴定(公差±0.02 mL)在滴定管的末端附加一个即用即弃的1-200 L 的塑胶头。

Moreover,thc rationality about calculating tolerance unit by using the grometrical average is discusscd in comparison with relative reeor by using the midline value which is in a basis diameter step.

本文给出了几何平均值与算术平均值最大相对误差关系的证明，并通过对尺寸分段内按中线值的相对误差的比较，进一步论述了按几何平均值计算公差单位的合理性。

The interior dimensions of silver brazing valve sockets are machined to the closest tolerances and finished smooth to promote full capillary attraction.

银钎焊的阀门套管的内部通径的机械公差和表面光滑度要求非常精确，以确保有足够的附着力。

The interior dimensions of silver brazing valve socket s are machined to the closest tolerances and finished smooth to promote full capillary attraction.

银钎焊的阀门套管的内部直径的机械公差和表面光滑度要求非常精确，以确保有足够的附着力。

The interior dimensions of silver brazingvalve sockets are machined to the closest tolerances and finishedsmooth to promote full capillary attraction.

银钎焊的阀门套管的内部直径的机械公差和表面光滑度要求非常精确，以确保有足够的附着力。

The interior dimensions of silver brazing valve sockets are machined to the closest tolerancesfinished smooth to promote full capillary attraction.

银钎焊的阀门套管的内部直径的机械公差和表面光滑度要求非常精确，以确保有足够的附着力。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。