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The catalytic performances of zinc acetate, metal oxide and metal have been investigated for this reaction system.

分别对Zn_2、金属氧化物和金属三种催化体系在该反应中的催化性能进行了研究。

In addition, metal zirconium, is another good corrosion resistance of the metal.

另外，金属材料锆，也是另一种耐腐蚀性能良好的金属。

A run flat tire wheel assembly having a run flat support member formed by a ring-shaped metal shell and rubbery elastic members in an inside cavity of a tire/rim, wherein the rubbery elastic member comprises a rubber composition including 100 parts by weight of a diene-based rubber and 0.1 to 5 parts by weight of cobalt acetyl acetonate and/or, as a reinforcing filler, 40 to 90 parts by weight of carbon black/silica in a ratio of 10/1 to 1/2 and 1 to 20% by weight based upon the weight of the silica, of a silane coupling agent, whereby the bondability between the ring-shaped metal shell and rubbery elastic members is improved.

一种轮胎车轮组装体，它是在轮胎/轮辋的内空洞部具有由环状金属壳和橡胶状弹性体形成的漏气保用支撑体的漏气保用轮胎车轮组装体，其中通过由下述的橡胶组合物来构成上述橡胶状弹性体，改良环状金属壳与橡胶状弹性体的粘结性，所述橡胶组合物含有：100重量份的二烯烃类橡胶；以及0.1～5重量份的乙酰基丙酮酸钴、及/或作为增强性填充剂，40～90重量份的以10/1～1/2的比例配合的炭黑/硅石，和相对于上述的硅石重量，1～20重量％的硅烷偶联剂。

Despite of some difference effected by acetosalicylic acid between this two kind of plants,we found that the enhancement of relative membrane penetration by heavy metal stress was reduced, the peroxidation of membrane lipids was alleviated and to some degree protected the membrane from injury by Cd~(2+),thus ultimately promoted the tolerance ability of plants to heavy metal stress .

尽管乙酰水杨酸对两种实验材料发挥作用的浓度范围有一定差别，但在受镉离子污染的培养液中施加乙酰水杨酸后，乙酰水杨酸均能有效的抑制重金属Cd~(2+)胁迫引起的细胞膜透性增加、膜脂过氧化水平升高，从而延缓了重金属对膜结构的损伤，最终增强了植物体对水体重金属污染的抵抗能力。

Basing on above researches, we designed a series of ionic liquid supported acetylacetone metal catalysts and non ionic liquid supported acetylacetone metal catalysts. The catalytic abilities of these catalysts were evaluated by using them to catalyze the methane oxidation reaction.

在以上研究的基础上，本论文设计了系列离子液体支载的乙酰丙酮金属催化剂及非离子液体支载的乙酰丙酮金属催化剂，并通过这些催化剂对甲烷氧化反应的催化效果来预测它们的活性。

Laser Solid Forming was an advanced fabrication technology that developed from Rapid Prototyping technique in 1990s and progressed very fast in the recent years. It has a promising future since a density metal component can be rapidly deposited by laser cladding metal materials additively.

激光立体成形技术是于二十世纪九十年代在快速原型技术的基础上发展起来的一项新的先进的制造技术，该技术采用同步送粉激光熔覆方法沿高度方向逐层堆积金属粉材，从而最终获得三维实体零件。

The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 12 to 15 carbon atoms, or is straight or branched chain alkenyl of 12 to 18 carbon atoms.

方法包括将包括聚酯和一种或多种烷基金属磺酸盐的混合物熔体挤出，其中金属是Na、Li或K和烷基是12-15个碳原子的直链或支链烷基，或是12-18个碳原子的直链或支链链烯基。

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。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。