查询词典 precursor

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。

The results show that, using trioctylphosphane oxide or hexadecylamine as ligand, all of precursor ［In(η5-C5H5)］ decomposite and form the indium nanoparticles.

利用十六烷基胺或氧化三辛基膦配位体的作用，前驱体均可分解得到铟纳米颗粒；而在HDA相对含量高、溶剂中不含水和在紫外线照射作用下，前驱体分解反应产物为铟纳米线。

Ethanol is a new promising precursor for the densification of C/C composites.

乙醇是一种很有应用前景的制备C/C复合材料的前驱体。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。