查询词典 titanium

These advantages of EBW make its use expanding in the welding of titanium and its alloys.The microstructure and properties of TC4 alloy joints welded by the electron beam were investigated in this paper with room-temperature impact test, room-temperature tensile test, room-temperature notch tensile test, high-temperature tensile test, endurant tensile test, microhardness test and metallographic analysis.

本课题通过室温冲击、室温拉伸、室温缺口拉伸、高温拉伸、持久拉伸及显微硬度等力学性能试验和金相显微组织分析、断口扫描分析等，对TC4钛合金电子束焊接接头的组织和力学性能进行了分析和研究。

However, the therapeutic efficacy is not ideal yet. There were 5 cases remained at least 3 mm enophthalmos postoperatively. The analysis of the CT data indicated that the insufficient compensation of orbital volume should contribute to the remained enophthalmos. The titanium mesh prebent with the aid of CAD/CAM technique can provide precise orbital reconstruction but can not increase the orbital volume sufficiently because of its limited thickness.

与此相应的是，该技术在术后眼球突度和复视恢复程度上，也较传统方法有所提高，然而，其治疗效果并不十分满意，8例患者中有5例在术后仍有超过3mm的眼球内陷，这一方面是由于该组病例创伤相对较为严重，另一方面，我们通过术后CT分析认为是由于眶容积补偿不足造成的，这是因为钛网的厚度有限，即使达到了精确的眶壁重建，其自身厚度也不足以补偿因脂肪液化、萎缩所造成的眶容积损失。

The grains of 6063 aluminum alloy made of electrolytic low-titanium aluminum alloy are small equiaxed grains too.

本文介绍一种新的添加钛的晶粒细化方法，即电解加钛法，并研究了细化效果。

Methods: Co-Cr alloy,Ni-Co alloy and casting titanium were respectively proc essed into size of 10 mm×10 mm×1 mm in tablets.

将 Co-Cr合金、Ni-Cr合金、纯钛分别铸造制备成10 mm×10 mm×1 mm板片，将每组30片随机分空白对照组、培养基对照组、实验组各10片。

In this paper, titanium ethoxide was synthesized by the direct electrochemical method. The production was characterized by Raman spectra. The effects of different factors on the voltage, current efficiency, material yield and space-time yield were investigated.

采用直接电化学法合成乙醇钛，采用激光拉曼光谱对产物进行了表征，详细探讨了电解时间、电流密度、支持电解质浓度、电解液温度以及电极间距对槽电压、电流效率、产物收率和时空产率的影响。

During the past decade, considerable research effort has been directed towards the development of in situmetal matrix composites, in which the reinforcements are formed in situ by exothermal reactions betweenelements or between elements and compounds. Using this approach, MMCs with a wide range of matrix materials(including aluminum, titanium, copper, nickel and iron), and second-phase particles including borides, carbides

在过去的几十年中，对于金属基复合材料我们做了大量的研究工作，这些复合材料的增强体都是通过元素之间或者元素与化合物之间的原位放热反应而加入到基体中的，这种方法广泛应用在生产金属基体材料（包括铝、钛、铜、镍和铁）和第二相颗粒中（包括硼、碳、氮、氧和他们的混合物）。

Regardless to the research development or industrial application, nano metal powders are extensively discussed. Within these powders, the flammable and explosible nano aluminum, titanium and iron powders produce a great amount production and apply widely. Meanwhile, the surface/volume ratio of powders is increased significantly under nano scale, in which to enhance the ignition opportunity. Thus, the dust explosion hazard risk of nano powders could remarkable rise. In addition, the comparison of explosion phenomenon, test methods and quantification parameters between nano and micro scale is necessary to deeply investigate further. So that this project operates the explosion characteristic experiments to measure and determine such the maximum explosion pressure, minimum explosion concentration and explosion characteristic Kst value on above mentioned three nano metal powders. Expectantly, to provide the appropriate recommendations of safety prevention for nano dust explosion based on the experimental results.

奈米金属粉末无论是研究发展或是工业界应用，目前皆是广泛讨论研究之材料，其中，奈米铝粉、奈米钛粉以及奈米铁粉等可燃、爆性粉末，均有高额产量及大量应用领域，与此同时，在粉末粒径进入奈米尺度的情况下，粉尘比表面积大幅提升，增加此三种粉尘可被点燃的机会，因此，潜在的粉尘爆炸危害风险将广幅增加，另外，微米尺度粉尘爆炸的现象、测试方法以及量化参数是否具有相同的实验尺度基点，也需要深入探讨，故本次计画针对上述三种奈米金属粉末，进行三种不同粒径的爆炸特性参数实验，如最大爆炸压力、最低爆炸浓度以及爆炸特性参数Kst值之量测与计算，期能量化其粉尘爆炸特性，并据此提出适当的安全防护建议。

M and 1. 12 ～1. 26μm, respectively. An equipment has been designed to make the three lasers operate. The equipment can be used in titanium sapphire and chromium－doped forsterite lasers for tuning over a larger range.

并设计了一个能利用同一装置方便地实现三种激光器的调谐运转；这一装置可以类似地应用于钛宝石激光器和掺铬镁橄榄石激光器中，实现范围更宽的可调谐激光输出。

In this regard, our goal is to develop a glow-discharge method to functionalize titanium surfaces by the covalent immobilization of bioactive organic molecules.

钛金属圆片先以氩气电浆去除表面污染物，来产生可重复取得的清洁表面，接著用丙烯胺电浆处理，使丙烯胺聚合在钛金属表面，再以交链剂戊二醛将白蛋白与丙烯胺的胺基(-NH2)键结。

OBJECTIVE: To compare the effects of titanium alloy and gold-platinum alloy porcelain-fused-to-metal on ultrastructure of canine gingival tissue.

目的：比较钛合金和金铂合金两种金属烤瓷修复体对犬牙龈组织超微结构的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。