查询词典 precursor

The results indicate that the Y5V dielectric powder prepared by MSS not only are homogeneous, excellent and intensive, but also is active, can be sintered 900~920℃and the dielectric properties are better than the columbite precursor method , can be applied with pure silver paste, the production cost of MLCC is able to reduced.

结果表明：熔盐法制备的Y5V电子瓷料粉体不仅颗粒均匀、形貌好、易分散，而且活性高，使得多层陶瓷电容器的烧结温度可以降低到900~920℃，其介电性能要优于传统的二步合成法制备的粉体，十分有利于采用全银内浆，大大降低MLCC的生产成本。

Relaxor ferroelectric(1-x) PbMg_(1/3Nb_(2/3)O_3-x PbTiO_3 ceramics near the morphotropic phase boundary were prepared by the columbite precursor method.

采用铌铁矿预产物合成法制备了组成在相界附近的(1-x)Pb(Mg1/3Nb2/3)O3-x PbTiO3弛豫铁电陶瓷。

Coming from the common precursor cells (Th0), Th1 and Th2 can commutate under the influence of different cytokines and antigens.

他们来自共同的前体细胞Th0，在不同的细胞因子、抗原等因素的影响下，可发生Thl与Th2的转换。

And recovery 30 days after topping could make sure there are enough carotenoids and soluble sugar in tobacco leaf cells. Besides the contents organic acid, protein, nicotine and potassium element are controlled in a certain scope, then tobacco leaves after curing kinds of compound proportion coordination bear more fragrance precursor.

打顶后30d采收烟叶，叶片细胞内既含有较多类胡萝卜素和可溶性糖，又能将有机酸、蛋白质、烟碱和钾含量控制在一定范围内，使烟叶调制后各种化合物的比例协调。

According to the building blocks concept dicyandiamide N≡C-NH-C (NH〓=NH was selected as the precursor to improve the nitrogen content in the electrodeposited carbon nitride films.

以丙酮为分散介质，在阳极电沉积过程中制备得N含量为48％的氮化碳薄膜，此膜中有一定量的C=N和C≡N键，热退火使得C≡N减弱，C-N增强。

We analysed precursor solidification mechanism,pointing out that solidification mechanism is crystallization,congelation and glass transition.

文章分析了纤维的固化机理，指出固化机理有三个：冻胶、结晶和玻璃化转变，其中蕴晶结构对聚丙烯腈基碳纤维原丝结构有重要影响。

It is proposed that these agglomerated products may be a precursor for hollow-onion crystal lattice growth.

根据这些团簇的排布情况，我们认为这种聚生物有可能是HO结晶晶格生长的前体

It is a precursor of many aromatic compounds and of alkaloids such as curare and morphine.

苯丙氨酸是苯化合物以及像箭毒和吗啡等生物碱的前体。

Carbon nitride powder with C-N bond was prepared. High pressure and temperature were supplied by Cyclonite and dicyandiamide(C2H4N4) was used as the primary precursor in this article.

利用黑索今炸药作为高温、高压源，双氰胺(C2H4N4)作为主要前驱体，采用爆炸冲击合成的方法制备了含C-N的氮化碳粉末。

Biogenic amines may appear as a result of bacterial decarboxylation reactions from precursor amino acids.

生物胺可能显示为一个由前体细菌脱羧反应的结果氨基酸。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。