查询词典 differentiation of a function

The present paper applies the quadratic splines to the Chemical Engigeering calculations for integration, interpolation and differentiation with good precision.

在样条函数的研究和应用日益广泛的今天，作者将人们所忽视的二次多项式样条函数引用到化工计算中的插值，求积和求导等方面，取得良好的结果。

We can easily recognize human and chimp,but at molecular level,this kind of differentiation is not so easy to obtain.

我们很容易分辨出人和黑猩猩，然而在分子水平上，这种分辨却不那么容易。

Chinaberry witches'broom, Ziziphus jujube witches'broom, Mulberry dwarf disease, JWB and Paulownia witches' broom phytoplasmas were identified by comparative studies of PCR amplify of phytoplasmal 16SrDNA、23rDNA and ribosomal protein gene, heteroduplex mobility assay, RFLP of PCR-amplified products (16S rDNA), cloning and sequence analysis of 16SrDNA and rp gene. An efficient procedure for rapid identification and differentiation of phytoplasmas was established, which could identify and differentiate phytoplasma collected from field.

通过对桑萎缩病、枣疯病、酸枣丛枝病、泡桐丛枝病和苦楝丛枝病植原体16SrDNA、23SrDNA和核糖体蛋白基因的PCR扩增、异源双链迁移率分析、16SrDNA PCR产物的限制性片段多态性分析以及植原体16SrDNA和rp基因的克隆和序列分析等比较研究，建立了一种快速确定未知植原体种类和分类地位的分子鉴别与鉴定优化程序；此程序可对田间采集的各种植物植原体样品直接进行快速鉴定和鉴别。

The invention provides a method for producing transgene sugarcane quickly with pmi genes. The method primarily comprises the steps of establishing a mannitose screening system; transformation of a gene gun; acquisition of resistant callus; differentiation and screening of the resistant callus; acquisition and rootage of resistant plantlets; molecule detection of resistant plantlets regenerated and detection of pmi gene expression by the chlorophenol red detection method.

一种利用pmi基因快速获得转基因甘蔗的方法，主要内容包括：甘露糖筛选体系的建立，基因枪转化和抗性愈伤组织的获得，抗性愈伤组织的分化筛选，抗性苗的获得和生根，抗性再生苗的分子检测和氯酚红法检测法检测pmi基因表达。

The species of extracellular ATP can participate the effect of nerve system not only as the neurotransmitter and modulator but also has a trophic action to glial cell and neuron. It participates in many courses, e.g. cell differentiation and apoptosis, the morphologic change of chondriosome, to stimulate the synthesis and release of cytokine and nerve growth factor. It has a great influence to neurological growth and plasticity.

细胞外ATP类物质不仅可以作为神经递质及调质参与神经系统的功能，还可对胶质细胞及神经元产生营养作用，广泛参与细胞分化及凋亡、细胞线粒体形态变化、刺激细胞因子及神经生长因子的合成及释放等过程，对神经系统的发育及可塑性变化产生重要的影响。

Based on the detailed contrast between the chondrite normalized REE pattern s and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation, and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

Based on the detailed contrast between the chondrite normalized REE patterns and REE geochemical evolution law, this paper proves that the ore bearing fluid for the Carlin type gold deposits in the area mainly originates from the upper mantle differentiation , and that the crust matter partly contaminates the plutonic ore bearing fluid during moving from mantle to crust.

通过稀土元素配分模式的详细对比和地球化学演化规律的研究，论证了滇黔桂地区金矿的成矿物质主要来源于上地幔分异，但深部成矿流体在运移至地壳的成矿过程中不可避免地混染了部分地壳物质，从而在一定程度上掩盖了成矿物质的实质来

Objective To explore the effect of apoptosis on chondrocyte differentiation.

目的：探讨凋亡在软骨细胞分化中的作用。

Chondrocyte differentiation and gene expression were observed.

观察软骨细胞的分化情况及基因表达情况。

The decrease of MMP-1,3 was one of reasons that the specific extracellular matrix of chondrocyte differentiation increased.

MMP-1，3分泌量减少是导致其成软骨分化特异性细胞外基质增多的原因之一。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我