查询词典 speculum metal

The invention provides a method for homopolymerizing conjugated dialkene or co-polymerizing conjugated dialkene and monovinyl aromatic hydrocarbon. The method comprises the following steps: the conjugated dialkene is homopolymerized or the conjugated dialkene and the monvinyl aromatic hydrocarbon are co-polymerized randomly. The method is characterized in that at least one alkali metal alkoxide compound expressed by the formula is used as a structure regulator; in the formula, R is linear chain or branched chain alkylidene radical having 1 to 10 carbon atoms; M is alkali metal selected from Li, Na, K, Rb and Cs.

本发明提供了一种使共轭二烯烃均聚或者使共轭二烯烃与单乙烯基芳烃共聚的方法，包括在阴离子聚合条件下使共轭二烯烃进行均聚或者使共轭二烯烃与单乙烯基芳烃进行无规共聚，其特征在于采用至少一种式所示的碱金属醇盐化合物作为结构调节剂，其中R为具有1-10碳原子的直链或支链亚烷基；以及M为选自Li、Na、K、Rb和Cs的碱金属。

Because of the rapid development of allylation reaction in aqueous media, allylation reaction mediated by new metal systems or metal systems, and its mechanism are reported increasingly.

水相烯丙基化反应由于其发展速度较快，新的金属及金属体系参与的烯丙基化反应以及水相烯丙基化反应的机理研究不断被报道。

The anisotropical characteristics of metal rubber elements performed under loadings in different directions were researched, and physical hypothesis were provided for the analysis of inner structure of metal rubber material The main parameters for the analysis of anisotropical performance were confirmed according to the previous hypothesis and tested experimentallyThe results show that variety of the relative heights and the radius of MR elements affect the radial stiffness of MR isolator When isola...

研究了金属橡胶构件在不同方向的载荷作用下表现出来的各向异性，提出了用于分析金属橡胶材料内部结构的物理假设，并根据假设确定了各向异性研究的主要参数，然后通过实验研究进行了验证。实验结果表明，如果改变金属橡胶元件的相对高度，增加径向尺寸可以在很大范围内改变金属橡胶隔振器的径向刚度；要使金属橡胶隔振器的力学特性更近于线性，应让隔振器在径向范围内工作；如果隔振系统中含有多个承受压载荷的金属橡胶隔振器，则可以使其工作在与成型压力方向相垂直的方向。当相同结构和尺寸的钢元件和金属橡胶元件在承受剪切载荷作用时，这两种材料表现出了相同的刚度变化趋势。

Research progress in the conductive high polymer of AXda010004 gathers the aniline in the metal antiseptically The conductive high polymer of survey gathers the aniline and research progress in the antiseptic respect of metal of derivative , have summarized the antiseptic mechanism put forward at present, and look into the distance to its application prospect .

综述了导电高分子聚苯胺及其衍生物在金属防腐方面的研究进展，总结了目前所提出的防腐机理，并对其应用前景作了展望。

A CHI metal ware factory was established more than 30 years ago. mainly specializing in metal ware fittings and sport equipments fittings. The products of A CHI have been appraised as famous brand products in the hardware fields. Our factory mainly deals in operations such as die casting, caulking, modeling of extension and iron pipe, the desing and development of archaistic modern products. In addition we can manufacture different atyles of hardware outer pack. Personspecially is assigned for the products in our factory.

记定五金厂成立至今已有三十余年，主要从事家具五金配件和运动器材配件，二十多年来，所开发及生产的项目得到了无数家具厂的认同和肯定，所以在五金行业中一直颇具影响，公司主要经营的项目有：压铸、冲压、铁线和铁管的造形，还有「仿古和现代」这两大类别的设计和生产，另可生产各种不同款的五金包，每款项目均有专人专业处理。

Using carbon arc air gouging craft instead of old pneumatic chipping, has machining is high efficient , work condition is improved, the artifactitious metal surface is smooth, doesn't bring bad influence to the metal which is processed, use convenient, economy saving and no noise and so on merit.

采用碳弧气刨工艺代替旧式风铲，具有加工效率高、改善工作条件、加工的金属表面光洁平整、对被加工金属的性能不产生有害影响、使用方便、经济节约、无噪音等优点。

The method comprises the steps of dipping and mixing the mipor asphaltic base globular active carbon prepared by the traditional method with an inorganic metal salt solution by a certain ration; heating under an inert atmosphere to 600 to 1200 DEG C at a temperature increasing rate of 1 to 20 DEG C/min for the secondary carbonization; using acid to wash off the remaining metal inside the carbonized material, so as to obtain the asphaltic base globular active carbon with a high mesoporous rate and narrow distribution of mesoporous spertures.

本发明提供了一种浸渍金属盐二次炭化制备中孔沥青基球形活性炭的方法，该方法是将传统方法制备得到的微孔沥青基球形活性炭按一定比例与无机金属盐溶液浸渍混合，然后在惰性气氛下以1～20℃/min的升温速率加热到600～1200℃下进行二次炭化，炭化料经酸洗除去内部残留的金属后，可制得中孔率较高、中孔孔径分布窄的沥青基球形活性炭。

Our company is the Director in China Steel Structure Association Building Branch, the Associator in China Architecture Metal Structure Association Architecture Steel Structure Branch, the Director in Shanghai Metal Structure Association and the Director in China Mechanism General Parts Industry Association.

从一九九六起，公司先后加入中国建筑金属结构协会、中国房屋建筑钢结构协会、中国紧固件标准化技术委员会、中国机械通用零部件工业协会、中国钢结构协会锅炉分会、上海市金属结构协会、上海对外经济贸易协会成为团体会员或理事单位。

Different from conventional fabrication of cathode powder, non-chelating polymer polvinyl alcohol serves to sterically entrap the metal cationa in a manner thewey which facilitates the formation of an atomistically homogeneous precursor material. And, calcining the solid precursor material to form a mixed metal oxide material, that is perovskite structured powder La0.5Sr0.2Co0.5Fe0.5O3.

该方法与传统方法不同，采用非螯合聚合物－聚乙烯醇(PVA， Polvinyl alcohol)作为阳离子的载体，形成含有La(上标 3+)，Sr(上标 2+)，Co(上标2+)，Fe(上标 3+) 4种金属阳离子和非螯合聚合物的均匀溶胶，干燥生成固体凝胶状前驱体。

There are many merits of autofrettage of the composite material barrel with metal inner. One of them is that it can increase the elastic-plastic strength limits and possesses higher anti-plastic failure properties than pure metal barrels.

对带金属内衬的复合材料身管，自紧有许多优点，一方面可以提高身管的弹塑性强度极限，且经处理后的复合材料身管比纯金属身管具有更高的抗塑性破坏能力。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。