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The synthesis of pure siliceous and aluminosilicate and various hetero-atoms substituted MCM-48 cubic mesoporous molecular sieves has been studied systematically.

系统考察了全硅和硅铝及各种杂原子取代的MCM-48立方相中孔分子筛的合成。

Polymerization of norbornene was carried out in the presence of a catalyst system consisting of amidogen substituted mono(η~5-cyclopentadienyl)titanium/methyl aluminoxane.

采用胺基取代单茂钛{Cp~*TiCl_2N[Si(CH_3)_3]_2}与甲基铝氧烷组成催化体系催化降冰片烯聚合，得到有一定结晶结构的、可溶的聚降冰片烯。

These amine substituted acid may polymenze in an analogous manner to unsubst ituted oxo-anions.

这些氨取代酸可以与未取代的氧络阴离子相类似方式聚合。

I don't know whether to tell her about the door they substituted or not, he said, the one with the equation on it and the picture of the amoeba reproducing itself by division.

我不知道是否要告诉她关于那个他们取代或不取代的门，他说，在它身上带有方程的一个，阿米巴由分裂再次生产它自己的图画。

A new series of short range donor acceptor systems consisting of anthracene and different substituted benzoic esters were synthesized.

设计合成了一类以蒽为电子给体，带不同吸电子取代基的苯为电子受体的新型短程有机电子给体受体体系。

We have not in these earlier examples any mention of the Hail Mary, which in England first became familiar as an antiphon in the Little Office of Our Lady about the beginning of the eleventh century (The Month, November, 1901), but it would be the most natural thing in the world that once the Hail Mary had become an everyday prayer, this should for the laity take the place of the more elaborate tres orationes recited by the monks; just as in the case of the Rosary, one hundred and fifty Hail Marys were substituted for the one hundred and fifty psalms of the Psalter.

我们并没有在这些早期的例子，完全没有提到冰雹玛丽，在英国首次成为熟悉作为antiphon在小小的办公室圣母约开始的11世纪（下一个月， 11月， 1901年），但它会最自然不过的事，在世界上，一旦冰雹玛丽已经成为每天祈祷，这应为俗人占据了更为详尽tres orationes吟诵由僧人；刚才的情况一样，玫瑰， 150冰雹。

The research progress on the formation of ordered molecular assembly in imidazolium ILs, such as liquid crystal, micelle, vesicle, microemulsion was reviewed. ILs can act as solvents, co-solvents, or surfactants to form liquid crystals. They also can be substituted for polar, apolar, or surfactant components in microemulsion to prepare various microemulsion systems ILs-in-oil, oil-in-ILs and bicontinuous B.

咪唑类离子液体可以作为溶剂、助溶剂和表面活性剂形成液晶；离子液体可以分别取代微乳液体系中的极性组分、非极性组分或表面活性剂，形成油包离子液体、离子液体包油和双连续的新型微乳液体系。

Based on the Influence factors of location error in clamping apparatus design, this paper has established the relation function between the procedure size s or angles and the location norm parameters, in which the positioning error substituted by the approximate differential value of function.

分析夹具设计中定位误差的影响因素，建立了工序尺寸或角度与定位基准有关量的函数表达式，由函数的微分近似代替定位误差。

Pulsed release pellets of DS were prepared by using low-substituted hydroxyprolcelluloseas inner swelling layer and aqueous ethycellulose dispersion-Surelease as outer controlled membrane on a mini-fluidized bed spray coater.

采用微型流化床包衣设备，以低取代羟丙基纤维素为内层溶胀层材料、乙基纤维素水分散体为外层控释层材料制备了双层衣膜的包衣微丸，并对包衣工艺和影响药物释放的因素进行了考察。

In this paper, the acute toxicity of 20 substituted aromatics to tadpoles is determined with static methods.

以蝌蚪为模型生物，测定了部分取代芳烃类化合物在静态实验系统中的24h急性毒性效应。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。