硅的

Silicoaluminophosphate (SAPO–5) molecular sieves were synthesized by the hydrothermal method, using metakaolin with a certain degree of activity as the silicon and aluminum sources, phosphoric acid as the phosphorus source and triethylamine com- bined with hydrofluoric acid as the template agents.

以具有一定活性的偏高岭土兼作铝源与硅源、正磷酸作磷源、三乙胺和氢氟酸为复合模板剂，用水热方法合成了磷酸硅铝分子筛(SAPO–5)。

In this paper, the effect of silicane coupling agent γ-aminopropyl triethy-oxysilane(A-1100) on interface properties of short glass fibre reinforced polycarbonate is report-ed.

针对短切玻纤增强聚碳酸酯体系，研究了硅烷偶联剂γ-氨丙基三乙基硅烷(A-1100)在上述复合体系中的界面偶联特性。

So it has more important significance that how to recognize silicified rock from host rock and the extent of silicify.

因此，如何正确地识别硅化岩石与原岩，以及硅化的强弱对于找矿有着重要意义。

It introduces the production control of low phosphorus and low carbon high silicon silicomanganese and the measures and crafts requirement of decreasing phosphorus and carbon.

论述了低磷低碳高硅锰硅合金的生产控制和降磷降碳措施以及工艺要求。

β-Cyclodextrin with the 6-hydroxyls protected by dimethyl-tert- butylsilyl was selectively oxidized by lead tetraacetate. After the silyl groups were removed off by boron fluoride-etherate, mono-2,3- dialdehydro-β-cyclodextrin as a cuniform molecule could be constructed.

用四醋酸铅将七元（6-O-二甲基叔丁基硅基）-β-环糊精选择氧化、并用三氟化硼乙醚脱硅基保护基后，再经分离、纯化，可获得具有&楔筒状&空腔的单-2， 3-二醛基-β-环糊精。

On the basis of comprehensive discipline research, the rocks subfacies and microfacies of hydrothermal rocks facies have been initially studied and the their characteristic have been come to conclusions frist time.

在多学科综合研究基础上，首次系统提出研究并总结了热水沉积岩相的亚相及微相特征，亚相包括有：钠长岩-似碧玉岩亚相、硅质白云岩→硅质岩亚相、碱性钠长石质-碳酸质岩亚相、铁镁碳酸盐岩亚相、重晶石岩亚相、黑云母方柱石岩/黑云母岩亚相及铁绿泥石岩亚相。

This product was prepared w ith octamethyl-cyclotetrasiloxane and tetramethyltetravinylcyclote-trasiloxane as monomers,a low visco sity hydroxyl -terminated silicone oil as an end -bl ocking agent and tetramethylammonium hydroxide as catalyst.

以八甲基环四硅氧烷为单体，四甲基四乙烯基环四硅氧烷为改性单体，羟基硅油为封端剂和相对分子质量调节剂，四甲基氢氧化铵为催化剂，在羟基硅油质量分数小于0.13%，催化剂质量分数为0.004%～0.007%时，采用共聚法制备了相对分子质量大于45×104，收率大于90%的端羟基聚二甲基硅氧烷。

Finally, we discuss the preparation, characterization and application of alkylsilane and mercaptoacetoxy monolayers on ordered mesoporous titanosilicate molecular sieve.

最后，我们讨论了介孔钛硅分子筛表面烷基硅烷单层和巯基乙酰氧基单层的制备、表征及应用。

Using tetrabutyl titanate and methyl methacrylateor 2-Hydroxyethylmethacrylate (HEMA as materials, methacryloxylpropyl trimethoxy siliane as coupling agent, HCl as catalyst, Poly-titania（PMMA－TiO2） nanocomposites and Poly-titania（PMMA－TiO2） nanocomposites were synthesized by sol-gel process.

以盐酸作为催化剂，将钛酸四丁酯水解制备二氧化钛（TiO2）溶胶；随后将所制备溶胶与甲基丙烯酸甲酯、硅烷偶联剂（γ－甲基丙烯酰氧丙基三甲氧基硅烷）相混合，以过氧化苯甲酰作为引发剂，经过聚合、缩合和溶胶-凝胶过程，制备了均匀透明的PMMA-TiO2纳米复合材料和PHEMA－TiO2纳米复合材料。

Sedimentary lithologies include chert, siliceous mudstone, tuffaceous fine-clastic rock, and micritic limestone.

这些地层的岩性包括硅质岩、硅质泥岩、凝灰质细碎屑岩和泥晶灰岩等。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷