有机硅的

Moreover, we found that N-heterocyclic carbene could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。

It has been achived some of effective chelating activatirs in the flotation of chrysocolla, malachite, ilmenite and wolframite.

研究还取得了有机螯合剂活化硅孔雀石、孔雀石、钛铁矿和黑钨矿细泥浮选的一系列有效方法。

The soils at sites 1a and 1b are acid-altered rhyolite and siliceous sinter geothermal soils (34), and they varied significantly with respect to temperature, pH, organic carbon content, and metal content both within and between cores (Table 2 and data not shown).

在站点那些土地1一和1 b在酸改变rhyolite 和硅质sinter地热土地(34)，并且他们显著关于温度，pH值，有机的含碳量变化，并且金属内容两个在核心内和核心在(表格2和数据被不显示)。

The paper introduces the formula, process and tensile strength of the organic-inorganic composite adhesive which is prepared by mixing acetalization of polyvinyl alcohol with silicasol.

叙述了以聚乙烯醇为原料，经缩醛化后和硅溶胶制备有机—无机复合粘合剂。介绍了配方、备程序和拉伸粘结强度的试验结果。

The result showed that the organotin compounds still remained certain biological activities after the introduction of silicon atom as well as variation of alkyl groups.

初步结果显示，有机锡化合物在引入硅原子、改变烃基结构后，仍保留有一定的生物活性。

Poly silica hybrids were prepared through polymerization, condensation and sol gel processes of the mixture of methyl methacrylate, poly and a small amount of coupling agent methacryloxylpropyl trimethoxy siliane in tetrahydrofuran.

采用溶胶-凝胶技术，以硅酸钠为原料制备聚硅酸/四氢呋喃溶胶，再与甲基丙烯酸甲酯及少许偶联剂甲基丙烯酰氧丙基三甲氧基硅烷(MPTMS 混合，经聚合、缩合和溶胶-凝胶过程制备了有机/无机两相间有— C—Si—O—键的杂化材料——聚甲基丙烯酸甲酯/二氧化硅(PMMA/Si O2 )。

The results show that: 1 the globally distributed CORBs were mainly present in late Cretaceous; 2the paleoenvironment of the CORBs is deep water of low latitude area in general; 3the lithologies are mainly consisted of red shale, red limestone, red marlstone, red mudstone and red siliciclastic shale; 4 the content of organic carbon is quite low.

通过对比，认为：1这些全球分布的大洋红层主要出现在晚白垩世，2一般分布在深水环境、低纬地区，3在岩性上，主要由红色页岩、红色灰岩、红色泥灰岩、红色泥岩、红色硅质页岩几种岩性组成，4有机碳含量普遍较低。

Titanates The organotitanates overcome many of the limitations of silanes as coupling agents for fillers.

有机钛酸酯克服了硅烷作为填料偶联剂的局限性。

"Leather, synthetic rubber, and silicones are among the materials used for the sealing ring ."

密封环用的材料有皮革、合成橡胶和硅有机树脂。

WELLET'S is a professional constitution engaging in the Synthesis material of Organic silicon fluoride in German.

WELLET'S是德国从事有机氟硅材料研究合成的专业机构。

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％。