查询词典 c.

We succeeded in synthesizing two different segments: C���-C��� and C���-C���, employing Sharpless dihydroxylation reaction, Julia coupling and samarium diiodide mediated reaction as the key steps.

我们从单保护的1，3-丙二醇出发，以Sharpless不对称双羟化反应，Julia偶联反应以及SmI〓参与的反应为关键步骤，经过艰苦的多条合成路线的尝试与探索，成功的得到了Phorboxazole A B的两个不同的边链部分C〓-C〓和C〓-C〓。

The comparative analysis of electronic expression profile of zfand5a gene from zebrafish, house mouse and pig that has high sequence homologies with zjp123 gene from P. olicaceus were carried out. Several conserved domains and motifs were discovered by the primary and secondary structure analyses. Zinc fingerlike tertiary struclure "C-Xasubscript (2-4-C-X11-C-X2-C" was shown by homology modeling.

电子表达谱分析分别对与ZFP123有较高同源性的斑马鱼、家鼠和猪的zfand5a(zfp123)基因各个组织表达情况进行了比较分析；一、二级结构分析发现其具有多个保守的基序和结构域；同源建模显示其具有一个&C-X下标(2-4-C-X11-C-X2-C&结构的锌指样三级结构。

OR＞1 indicates dangerous factor, OR＜1 protective factor, and OR=1 no significance. The results showed that if triglyceride and very low density lipoprotein cholesterol increased an average level of normal respectively, and there would be OR of TG 2.43 (P＜0.05) and OR of VLDL-C 6.09 (P＜0.05), the high levels of TG and VLDL-C were the factors of lithogenesis. High density lipoprotein cholesterols (HDL1-C, HDL2-C, HDL3-C), with OR less than one, were the factors of protecting against the formation of gallstone.

结果：甘油三酯和极低密度脂蛋白胆固醇每增加一个正常均值水平，OR值分别是2.43(P＜0.05)和6.09(P＜0.05)，是重要的致石因素指标；高密度脂蛋白胆固醇(HDL1-C、HDL2-C、HDL3-C)，OR值均低于1，是重要的防石因素指标；低密度脂蛋白胆固醇和总胆固醇的OR值均小于1，本研究结果提示其可能是一种代谢状态而非保护因素。

PPARα ligands suppressed OPN promoter actiity, and an actiator protein-1 consensus site conferred this repression. Oerexpression of c-Fos and c-Jun reersed the inhibitory effect of PPARα ligands on OPN transcription, and, in chromatin immunoprecipitation assays, PPARα ligands inhibited c-Fos and phospho–c-Jun binding to the OPN promoter.

PPARα配体可抑制OPN启动子活性，一个激活蛋白-1的一致序列位点与这种抑制有关。c-Fos和c-Jun的过表达可逆转 PPARα配体对OPN转录的抑制作用，并且在免疫沉淀实验中，PPARα配体可抑制c-Fos及磷酸化c-Jun与OPN启动子的结合。

Under the condition of laboratory incubation,the C loss of organicmaterials during their mineralization was greater than their N loss,inducing ahigher residual amount of organic organic N.During the decay of maize andrice staw with a wide ratio of C/N.soil microbes could fix N,but the fixationrate was quite low,only 0.2-0.9g N/assimulated 100g organic C.

在实验室培养条件下有机物料在矿化分解过程中C的损失总是大于N的损失，因此有机N的残留率明显高于有机C的残留；且由于灰分总量不变，有机物料的残留率也略高于有机C的残留率；〓比较宽的玉米秸和稻秸在腐解过程中发生了自生固N作用，但其固N效率仅为C：N=100：0.2-0.9，即每同化100g有机C，只能固定

A C-C bond type radical initiator i.e. 1,1,2,2-tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively."Living"/controlled polymerizations of a polar monomer MMA and a non-polar monomer St were investigated with the initiation systems as well as other new initiation systems; behavior of vinyl polymerization with a new asymmetrical C-C bond type thermal monomeric iniferter was studied also.

前者选用C-C键型的自由基聚合引发剂1，1，2，2-四苯基-1，2-乙二醇、S-S键型的热iniferter二硫化四乙基秋兰姆组成新引发体系TPED/FeCl3/PPh3、TD/FeCl3/PPh3，研究这些引发体系引发MMA、 St聚合的&活性&/控制聚合行为，同时研究一些其他新引发体系；后者合成了一种新的非对称C-C键型热引发转移终止剂，并研究其自由基聚合规律。

The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.

碱基含量分析可知，序列的G C含量(49.3％)＜A T含量(50.7％)，密码子第三位点的G、T含量都有较强的偏倚性；序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次)，C→A、T→G颠换数均为2次，其余颠换模式均未发生；转换数明显高于颠换数，Ts／Tv=9.5～19，密码子第三位点的转换数最高，呈现了相当强烈的转换偏倚性；密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239，表明密码子第一位点的替换速率变异最大，第二位点次之，第三位点的替换速率变异相对较小；编码同一氨基酸的同义密码子并非随机使用，表现出一定程度的使用偏倚性；同义替换速率和非同义替换速率分别为0.0787和0.0011，dS与dN值间的差异极显著(Z=4.713，p＜0.01)，而ω=0.0284，明显小于0.3，表明雁属鹅细胞色素b基因序列经历了中度净化选择作用；单步非同义替换(Sing-step nonsymonymous codon substitution，SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同；构建的最大简约树与邻接树拓扑结构一致，支持中国家鹅的双起源学说，即除伊犁鹅外的其它中国鹅品种起源于鸿雁，伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。

SiC polytypes of 6H and 15R and a transition zone between the two were observed under HREM and TEM and discussed from the point view of the crystal structures; the clear evidence of Al〓C��� nucleated in the SiC particle was provided, indicating the aluminum penetrating the SiC grains is already carbon-saturated and, consequently, Al〓C��� crystals grow in the particles wherever a temporary local supersaturating is produced; The experimental observation indicated that the types of the interface between SiC and Al are variable and the distribution feature of reaction product, Al〓C���, were also given in the present work: to be nucleated on SiC, to be aggregated at SiC/Al interface zone or to be aggregated at the crystal boundaries.

通过高分辨透射电镜，本文观察到SiC增强体中6H和15R同质多晶现象及6H-15R SiC转变区，以及另外一种无序的SiC同质多晶，并从其晶体结构的角度解释了6H和15R在晶体内共存的现象。通过高分辨透射电镜，本文给出了Al〓C〓在SiC颗粒内部形核的明证，表明Al〓C〓形核是Al渗透到SiC颗粒内部在C过饱和处在SiC的（0006）面上而形核，而且一种可能的位相关系为A1〓C〓[11〓0]∥SiC[11〓0]。研究结果同时给出了SiC/Al复合材料的界面反应产物A1〓C〓的分布特征：在SiC上形核并生长，聚集于SiC/Al界面去附近，或者聚集于晶界上。

Across joins 2 be: Both sides makes alternate connection, mutual promotion opposite party needs the keyword of promotion, if A B C D stands, a B station is my site, c D station is site of the other side, it is me above all with A the station puts join of station of C of the other side, the other side joins with D station my B stands, such quality that makes the A station that the condition is me asks like Pr and the condition of the D station of the other side is a balance, such we just make connection significant, simple for the rank that such purpose is the C station that we popularize him in side the other side, the other side is popularizing the rank that our B stands, be mutual benefit actually, a lot of had not become alternate connective friend, should turn to them a little only next turns, they are muddleheaded, it is a dot really so it is cerebrum begins god-given report, but the result that such doing is very fast, the result that compares direct trade is good, because search engine to like one-way link, such rank is collected what come is fast, most stationmaster feels to inquire inconvenience so, what such doing is easy let stationmaster consider as cheating join, because such inquiry is no-go, unlike straight contact joins into the other side the connection that can see he stands is checked easily, anyway aught has the one side of its advantages and disadvantages!

交叉连接二是：双方都做交叉连接，互相推广对方需要推广的关键词，如 A B C D 站，A B 站是我的站点， C D站是对方站点，首先是我用A站放对方C站连接，对方用D站连接我的B站，这样的做条件是我的A站的质量如pr要求和对方的D站的条件是平衡的，这样我们才做连接有意义了，简单来说这样的目的是我们在帮对方推广他的C站的排名，对方在推广我们的B站的排名，其实都是互利的，好多没有做过交叉连接的朋友，只要稍微给他们转下弯，他们就糊涂了，这样的确是点是大脑开始难得反映，但是这样做的效果很快，比直接交换的效果好，因为搜索引擎喜欢单向连接，这样的排名收录都来的快，大多数站长觉得这样查询不方便，这样做的容易让站长认为是在骗连接，因为这样的查询是不方便，不像直接点进对方连接能看见自己站的连接容易检查，反正任何事物都有它的利弊的一面吧！

LT3468ES5-1 Pinout: 8-bit Resolution 1 Gsps Sampling Rate ADC Gain Adjust 2 GHz Full Power Input Bandwidth Fs = 1 Gsps, Fin = 20 MHz: C SINAD = 45 dB (7.4 Effective Bits) SFDR = 58 dBc Fs = 1 Gsps, Fin = 500 MHz: C SINAD = 44 dB (7.2 Effective Bits) SFDR = 56 dBc Fs = 1 Gsps, Fin = 1000 MHz (-3 dB Fs): C SINAD = 42 dB (7.0 Effective Bits) SFDR = 52 dBc 2 Tone IMD:-53 dBc (489 MHz and 490 MHz) at 1 Gsps DNL = 0.3 LSB INL = 0.7 LSB Low Bit Error Rate (10-13) at 1 Gsps Very Low Input Capacitance: 0.4 pF 500 mVpp Differential or Single-ended Analog Inputs Differential or Single-ended 50 ECL Compatible Clock Inputs ECL or LVDS/HSTL Output Compatibility Data Ready Output with Asynchronous Reset Gray or Binary Selectable Output Data; NRZ Output Mode Power Consumption: 3.4 W at TJ = 90 C Dual Power Supply: 5 V Radiation Tolerance Oriented Design 150 Krad (Si Measured

LT3468ES5-1引脚说明： 8位分辨率1 GSPS的采样速率ADC的增益调整2 GHz的全功率输入带宽= 1 GSPS的二恶英，翅= 20兆赫中：C的SINAD = 45分贝（7.4有效位）的SFDR = 58 dBc的二恶英= 1 GSP的，财务= 500兆赫中：C的SINAD = 44分贝（7.2有效位）的SFDR = 56 = 1 GSPS的dBc的外勤人员，财务= 1000兆赫（-3分贝财经事务）中：C的SINAD = 42分贝（7.0有效位）的SFDR = 52 dBc的2声调发展学院：-53 dBc的（489兆赫和1 GSPS的的DNL = 0.3的LSB的INL = 0.7 LSB的低误码率（10-13）在1 GSPS的非常低输入电容：0.4 pF的490兆赫）500 mVpp的差分或单端模拟输入差分或单端50Ω的ECL兼容的时钟输入的ECL或LVDS / HSTL输出兼容性数据与异步复位灰色或二进制可选的输出数据就绪输出； NRZ码输出模式下的功耗：3.4 W于温度Tj = 90 C双电源：5伏辐射性导向设计

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷