金属加工

We found many unexpected effects in MPR, such as the optical tweezer, thermal and laser ablation effects, which also greatly influence morphologies of metallic structures.

同时，我们研究了加工条件对银微纳结构表面形貌、外形以及连续性的影响，揭示了在多光子过程中存在的光镊效应和激光消融效应与金属微结构形貌的关系。

There are three types of wrinkle which frequently occur in the sheet metal forming process: flange wrinkling, wall wrinkling, and elastic buckling of the undeformed area owing to residual elastic compressive stresses.

在金属板料成型加工中通常存在三种类型的起皱现象：法兰起皱，侧壁起皱，和由于残余压应力在未变形区产生的弹性变形。

The company has advanced production equipment: rubber mixing, rubber vulcanization injection molding, metal surface treatment, mold design and processing center.

公司拥有先进的生产设备：橡胶密炼、橡胶注射硫化成型、金属表面处理、模具设计加工中心等。

The metal's being workable is one of the reasons why it is so widely used in industry.

这种金属可以加工，这是它在工业中广泛应用的原因之一。

The metal's being workable is one of reasons why it is so widely used in industry.

金属能被加工是它在工业上得以广泛应用的原因之一。

Because there are many kinds of matrixes in titanium matrix composite, we select some typical ones as investigated subject in many titanium alloys or titanium aluminide intermetallics, and then simulate the distribution of thermal residual stresses under the appropriate composites fabrication and heat treatment parameter. We not only hope to seek better titanium matrix, but also discover the relationship between the material properties and the thermal residual stresses, and then provide some theoretical guidance for the selection of the matrix in titanium matrix composites.

鉴于当前钛基复合材料中钛基体的多样性，我们将在各种类型的钛合金和钛铝金属间化合物中，挑选出较为典型的作为研究对象，利用本文得到的较为理想的复合材料加工和热处理工艺参数，逐一模拟它们的残余热应力，找到残余热应力分布较为理想的钛基体，并且，希望能够寻找到材料性能与热残余应力的相互关系，为钛基复合材料基体的选择提供一定的理论指导。

Recent years, with the development of modem grown technology insuperthin layer material (e.g. MBE and MOVCD) and various super-elaborate artifactitious technology, the study in small scale semiconductor microcavity arouses people\s interests.

近年来，随着现代超薄层材料生长技术(以分子束外延MBE和金属有机化合物汽相淀积MOCVD等技术为典型代表)和各种超精细加工技术的发展，小尺度半导体微腔的研究引起人们的兴趣。

This kind of mini - emulsion is lurricant, boled, anticorrosive, clean and disperser, It also has better transparency, large using scope , Long-life, low pH.

它集润滑性、冷却性、防腐蚀性、清净分散性于一身，同时也具备透明度好，适应范围广长寿命、pH低、无刺激性的优势，因而特别适合于金属精密机械加工行业使用。

Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

石材是岩石经加工后所产生的制品，岩石是由矿物组成的，其中含铁矿物是石材中铁质的来源。铁元素在自然界中分布甚广，但大多以化合物的方式出现，由于铁元素属中等活泼性的金属，在高温下易和氧、硫、氯等元素发生强烈反应，并易溶于无机稀酸和浓盐酸的溶液中，同时浓碱溶液也易侵蚀铁。

The development of the lead free cutting brass containing bismuth and graphite/copper composite was summarized.It can be concluded that the key points for cutting brass containing no lead are the choices of elements which can form brittle but not hard intermetallics and procedure which can make the intermetallics distribute dispersively.

详细介绍国外无铅易切削铋黄铜研究开发的一些成果和石墨/铜合金复合材料的研究情况，总结国内无铅易切削铜合金的研究情况，结合自己的研究结果，指出无铅易切削铜合金的研究方向是采用适当的元素形成脆而不硬的金属间化合物，并采用一定的加工手段使其呈弥散分布。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。