查询词典 C

The authors also point out a limitation of their study is that they did not have adequate data to ascertain the effects of medications on the course of the C difficile infections (and presumably that includes data about the use of probiotic supplements to try to prevent C diff in the first place).

作者还指出，限制他们的研究是说，他们没有足够的数据，以确定影响药物对过程中的c艰难感染（和推测，其中包括对数据的使用益生菌补充剂设法防止c差异在第一地点交代问题）。

Hydroxy-5, 10-dihydrophenophosphazine 10-oxide (1) reacted with SOCl2, and then with MeONa in MeOH to give a methyl phosphinate (2) which can be converted to a dinitro compound 3 (62%) by nitration and the resulting dinitro compound 3 can further be converted to 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide (4, 71%) by hydrogenation over Pd/C (w = 0.05). And the effect of amount of Pd/C (w = 0.05) on the reduction was also studied.

10－羟基－5，10－二氢磷杂吖嗪－10－氧化物（1）经醯氯化、甲基化得到10－甲氧基－5， 10－二氢磷杂吖嗪－10－氧化物（2），2经硝化得到10－甲氧基－2，8－二硝基－5，10－二氢磷杂吖嗪－10－氧化物（3，62%）。3在Pd／C（w = 0.05）存在下，用氢气还原为2，8二氨基－10－甲氧基－5，10－二氢磷杂吖嗪－10－氧化物（4，71%），考察了Pd／C（w = 0.05）用量对氢化还原反应的影响。

By phenotype observation, combined with root tipchromosome counting, PMC MI pairing analysis and chromosome C-banding, a ditelosomic addition line 94K227 and a disomic addition line 94K280 was identified among BC2F2 and BC2F3 population respectively.C-banding results showed that 94K227 contains 1 pair of long arms in chromosome B, and 94K280 contains 1 pair of chromosome D from R.

用普通小麦-纤毛鹅观草双倍体与普通小麦中国春连续回交两次，然后连续自交，通过形态观察、根尖细胞染色体计数、花粉母细胞减数分裂中期Ⅰ染色体配对分析及染色体C－分带，在BC2F3和BC2F3群体中，分别筛选到一个端二体异附加系94K227和一个二体异附加系94K280，其中C-分带显示94K227添加的是纤毛鹅观草染色体B的一对长臂， 94K280添加的是纤毛鹅观草的一对染色体D。

The molecule of taxol is an extremely complex diterpene with a taxane ring structure fused with a four-membered oxetane ring, an ester side-chain at position C-13 and a benzoyl side-chain at the C-2 position Fig.

紫杉醇分子是一个极其复杂的四环二萜类化合物：一个紫杉烷环加一个四个元素组成的氧烷环，在C-2和C-13上还分别有一个苯氧基和酯基侧链。

By the B3LYP calculation of DFT, the difference in changes of energy and charge of ion probe C〓 and C〓 interacting with hBN and graphite respectively and the difference in frontier orbital energy level reveal difference in electroaffinity of hBN and graphite. It could be indicated that hBN only shows weak electropositivity, and will not be able to accept electrons from metal.

根据密度泛函B3LYP方法的计算结果，从六方氮化硼与石墨的前线轨道能级和两者对离子探针的作用能及C〓和C〓的电荷变化不同所表现出的在电亲和性上的差异，揭示了金属难以插入六方氮化硼层间的原因是六方氮化硼仅显弱的电正性，不能接受金属转移来的电子。

The PCR product were detected by agirose and polyaridlamid gel electrophore- sis for quentifying Myc gene. The tissue samples were same as former. The C—myc amglification appersed 42% in larynx cancer and 20% in djacent tissue.

发现喉癌组织C—myc扩增率为42％，癌旁组织扩增率为20％。C—myc的扩增多发生在低分化癌中，提示肿瘤分化和C—myc之间存在着一定的相关性。

The results show that the catalytic activity of C-MWNTs for the electroreduction of m-nitrotoluene is good;the electrochemical reduction of m-nitrotoluene on C-MWNTs is an irreversible cathodic wave,which is controlled by adsorption.

在实验基础上，进一步分析研究了C-MWNT-PME在间硝基甲苯电还原过程中的稳定性，结果表明，酸性溶液中C-MWNT-PME在间硝基甲苯电还原过程中是稳定的。

Blood biochemical index: ALT is elevatory 2, BUN is elevatory 2, cr is elevatory 2, k+ reduces 1, na+ reduces 1, c L- reduces 1, c...

血生化指标：ALT升高2例，BUN升高2例，Cr升高2例，K+降低1例，Na+降低1例，C l-降低1例，C。。。

The reaction proceeds by ethene chemical adsorption to form the surface ethoxide and the C-C bond formation between the ethoxide and the second ethene molecule to form the butoxide product.

乙烯化学吸附生成的烷氧化合物与物理吸附的乙烯分子发生二聚反应生成新的C-C键同时生成新的烷氧化合物。

First, the preparation of the aminom ethylation of tannin using its electrophilic reaction activity of C-6, C-8 in ring-A; then process the quaternization base on the aminom ethylation; last, progress the sulfonation by use of the activity of phenolic hydroxyl hi ring-B.

首先利用单宁A环的C—6、C—8的亲电反应活性制备单宁胺甲基化产物；然后在胺甲基化的基础上进行季胺盐化；最后利用单宁B环的酚羟基的活性进行磺化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。