精密的

Days from the Japanese and British companies with domestic production technology and the characteristics of the development of high-speed automatic precision die-cutting machine, a high-precision machine paste, precision Slitter, automatic Park knife grinder and professional slice of Pai and other waste, integrated performance is better than Similar foreign products.

天英公司借鉴日本技术并结合国内生产的特点研制的自动精密高速模切机、高精度贴合机、精密分切机、自动园刀磨床以及专业的排废切片机等，综合性能指标优于国外同类产品。

And the influence of the knifepoint geometry and the sharpness of the cutting edge on processing quality in ultra-precision cutting is analyzed.

指出超精密切削实际上是刀具刀尖部分与工件的相互作用，分析了金刚石刀具刀尖几何形状和切削刃的锋利度对超精密切削加工质量的影响。

The ultra-precision cutting is of the interaction between knifepoint geometry of the tool and work-piece.

指出超精密切削实际上是刀具刀尖部分与工件的相互作用，分析了金刚石刀具刀尖几何形状和切削刃的锋利度对超精密切削加工质量的影响。

It is a new tool to detect and observe the structure and status of underground media by accurately measuring its transfer function through sinusoidal elastic wave accurately controlled in frequency and stable in phase.

它是使用一种精密控制频率和相位稳定的弹性波，对发射和接收两点间的传递函数进行精密测定从而监视和观测地下构造和状态的一种新型手段。

Three dimension metal plastic deformation of special shaped products was transformed into two dimension axis symmetry problem, analysis model of the continuous stream and strain rate fields were sough.

将三维金属异型材挤压塑性成形问题转化为二维轴对称成形问题，求解椭圆异型挤压金属塑性成形连续流动场和应变速度场的数学解析模型，并应用金属塑性成形理论，建立了精密挤压异型材优化模腔的数学模型，同时为精密快速地实现挤压模腔的CAD/CAM一体化目标提供了技术支持。

ABSTRACT This thesis is devoted to the study on the characteristics of polymeric film bearings with polymer films electrochemically deposit...

本文研究了表面为聚合物薄膜的球面支承与超精密导轨平面构成的超精密测试导轨滑动副的摩擦与磨损性能。

By analyzing ultra-precision table systemed researching status and the principle of electrorheological fluid, an 'ERF semi-active damper based on linear motor drive-air/magnetic guide way'nanometer positioning table system is put forward.

通过分析超精密工件台系统的研究现状和存在问题及电流变液ERF 的机理和应用现状，提出&基于ERF 半主动阻尼的直线电机驱动-气浮/磁浮导轨&纳米级超精密工件台系统。

Equipped with a variety of advanced machines for cold processing searmless we produce diffcrent sizes and types of exactitude seamless steel tubes,The indexes of our products have reached or forereached the requirements of products can reach500 ton.

我公司成立于2000年，是一家专门从事冷轧高精密黑色、有色金属无缝管的专业生产厂家，拥有国内先进的冷轧无缝管机，可生产多种规格、品种的精密无缝管材、管件，产品指标均已达到或超过GB8713-88标准，年设计产量可达500吨。

Holding the enterprise tenet of business on good faith,technology innovation, Tianrong implements clear and opening price policy that all products price is guided by market, and the precising foundry goods is counted by tons.

天嵘公司以&诚心经营，技术创新&位为企业宗旨，所有经营内容的价格，坚持以市场为导向。精密铸造以吨计价，精密加工、不锈钢喷砂等，实行开放式的、透明的价格政策。

Content of water-soluble material— Disperse about 10 g, accurately weighed, in 800 mL of water, accurately measured, and stir for 1 minute every 10 minutes during the first 30 minutes. Allow to stand for an additional hour, or centrifuge, if necessary. Decant about 200 mL of the aqueous slurry onto a rapid-filtering filter paper in a vacuum filtration funnel, apply vacuum, and collect about 150 mL of the filtrate. Pour the filtrate into a tared 250-mL beaker, weigh accurately, and calculate the weight, in g, of the filtrate, W3, by difference.

水中可溶物含量：取本品10g，精密称定，准确加入800mL水，在30分钟内，每10分钟摇一次，每次摇一分钟，然后再放置1小时，必要时可用离心机离心，轻轻倒出200mL上清液于一真空过滤漏斗上，快速过滤，收集大约150mL的滤液，置于一已知重量的250mL烧杯中，精密称定，计算以g表示的滤液重量(W3)，。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。