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A series of transition metals, transition metal oxides and composite metal oxides were investigated as catalysts for phenol hydroxylation. Twelve new types of phenol hydroxylation catalysts with good activity and application prospect were reported.

考察了一系列过渡金属氧化物、复合金属氧化物及金属作为苯酚羟基化作用催化剂的反应性能，筛选出12种具有良好活性与应用前景，尚未见文献报道的苯酚羟基化新型催化剂。

SPI has an experienced team of metal stamping specialists and toolmakers who specialize in precision metal stamping parts especially in the industry of HDD,Consumer Electronics,Mobile Phone and Automotive Electronics.

苏州铭峰精密机械有限公司拥有在精密金属冲压及模具制造领域经验丰富的专业技术团队，特别是在硬盘，移动电话，汽车电子系统的精密冲压元件领域。

And 17 were capable of detecting specific metal ions by showing dramatic enhancement of fluorescence. In contrast with 15 and 17, the fluorescence signals of 13 and 14 were inefficiently altered by metal ions. Hence, 15 and 17 were further investigated with detailed 1H-NMR, UV-vis, and fluorescence titrations.

其中，15和17对特定金属离子有明显的侦测能力，混合后萤光强度会大幅增强，但13及14与金属离子混合后，萤光讯号的改变幅度不如15及17的显著，因此我们只对15和17进行详细的1H-NMR、UV-vis及萤光光谱的滴定。

The dissolution rate of platinum sheaths and thimbles is known to be proportional to the exposed metal surface area; and the leakage current through the metal to tank ground, and inverselyproportional to the frequency of the power mains.

铂金套管和嵌套管的分解率有一个常用的比例适合裸露的金属表面区域；泄露电流穿过金属到储槽容器，相反地有一个电源有频率有一个合适的比例。

A part of these tetrahedra is also connected via metal-metal homo-bonds which are Ge-Ge and Ga-Ga bonds.

少部分四面体也通过金属-金属同极键(Ge-Ge键和Ga-Ga键)连接。

The high solubility of CdS is ascribed to the dissociation of metal-metal bonds and edge-shared tetrahedra in these Ga-containing glasses.

CdS高的含量可归因于含Ga硫系玻璃中金属-金属键和共边连接四面体的分离。

In early stage, suflides and selenides instead of tellurides were in focus, and little metal-metal interaction exists in these layered chalcogenides.

从结构特征看，已有的层状三组元硫族化合物中没有或少有金属-金属相互作用。

It is the first example foundin tellurides that the third component inserts the intra-layer region as well as the interlayer one. This statisticoccupation of Ni atom between layers also produces variouschemical environments around metal and non-metal atoms in thiscompound.

第三组元金属插入层内的同时也插入层间，这在碲化物中是很少见到，并使该化合物中金属和非金属的局部化学环境多样化。

Using tellurium power and corresponding simple metal salts as reactants, we have prepared a series of nanocrystalline metal tellurides (Cu〓Te〓, CoTe〓, NiTe〓, SnTe, Ag〓Te, CdTe, PbTe) in ethylenediamine system at low temperature (140-180℃).

通过乙二胺体系的溶剂热过程，以碲粉为碲源，从简单金属盐出发，在较低的温度下（140-180℃）成功地制备了一系列纳米金属碲化物(Cu〓Te〓、CoTe〓、NiTe〓、SnTe、Ag〓Te、CdTe、PbTe)。

The steady state shielding efficiency of plate shielding cabin with metal silk net window is about 15dB under 10kHz and 20dB over 10kHz. Metal silk net window has larger influence to the points close to the window.

关门时各种门对暂态磁场都有很高的屏蔽效能（55dB以上），全钢板门最好，带100目合金丝网玻璃窗的门、带200目N6合金丝网玻璃窗的门依次差一些。

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。