查询词典 precursor

Highly ordered mesoporous carbon,denoted as CMK-5,was synthesized by using mesoporous silicates SBA-15 as template and furfuryl alcohol as carbon precursor.

以介孔硅SBA-15为模板，糠醇为碳源制备了高度有序的介孔碳(CMK-5)，并用微波法合成碳负载的铂纳米粒子的催化剂。

Many studies reported suggest both neuronal precursor cells before innervation of target fields and the neurons of adult animal coexpress neurotrophic factors and their receptors, implying that autocrine and paracrine modes of NTFs exit. It has been observed that a number of neurotrophic factors and their receptors were expressed in cultured hippocampal cells and dorsal root ganglionic cells.

研究表明，无论是靶组织联系建立以前的神经元前体细胞，还是成年后的神经元，均有神经营养因子与其受体的共同表达，提示有神经营养因子自分泌和旁分泌存在的可能性。

W wide variety of neurons and glial cells differentiate from common precursor cells in the developing nervous system.

在神经系统发育过程中，多种神经元及神经胶质细胞是由共同的前体细胞分化而来的。

Glycerate 3-phosphate is a precursor of the amino acid serine.

甘油3-磷酸是丝氨酸的前体。

Glycoluril is the precursor for perhydroxycucurbit[6]uril (HOCB6), and in this paper a novel method of well-proportionally coating glycoluril stationary phase and perhydroxycucurbit[6]uril stationary phase on a packed column under acidic condition was developed for gas chromatography.

甘脲是羟基葫芦[6]脲(HOCB6)的前体，本文设计了一种在酸性条件下均匀涂渍固定液的新方法，首次将甘脲和羟基葫芦[6]脲用作气相色谱固定相。

Ferrocene was used as a catalyst precursor to graphitize the pyrolytic carbon.

碳包覆层的结构和形态对LiFePO4正极材料的电子电导率影响很大。

It's known that: YE is a new international condiment derived from natural edible yeast, as well as the nutritional delicious precursor substance rich in nucleotides, inosinic acid, guanylic acid, etc.

据悉：YE是源自天然食用酵母的国际新型调味料，含有丰富的核苷酸、肌苷酸、鸟甘酸等营养型美味前体物质。

But such a proposal should be understood in strictly historical terms; that is to say, it properly refers to the precursor of Old Gutnish contemporary with the Gothic texts.

如此的提案以严格的历史名词来理解的话，就是说，它提及了当时古顾特语的先驱与哥德语文件的关系。

The short range order is the similar as structure of diopside ferrian and hedenbergite existed in the glass ceramics and hasthe precursor structures of crystal phase.

微晶玻璃中存在[SiO4]和[Fe3+O4]四面体单元，析出相具有和透辉石和钙铁辉石类似的结构。

The formation mechanism of the hollow and helical fibers was proposed. During the heat treatment, the hollow fibers could be formed when the inner gel of the thinner precursor fibers was separated from the center and contracted to surface. However, the helical fibers could be generated when larger gel fibers were broken helically under thermal stress in the process of gel decomposing and contracting.

分析了中空纤维和螺旋纤维的形成机理，直径较小的前驱体纤维在热处理过程中内部凝胶向表层迁移收缩形成中空纤维；螺旋纤维是由直径较大的前驱体纤维在热处理过程中产生的强大的热应力导致纤维产生螺旋破裂形成的。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。