查询词典 B

Objective To establish a sensitive and specific gene probe method for detection of Staphylococcal enterotoxin B gene.

目的 建立一种灵敏度高、特异性好的DNA 探针检测葡萄球菌肠毒素B 基因方法。方法用聚合酶链反应扩增的方法进行葡萄球菌B 型肠毒素基因探针生物素标记，用制备好的基因探针，进行斑点杂交，对葡萄球菌肠毒素10 株标准株和39 株临床株分别进行了检测。

Results The abdominal drainage amount and reserved drainage tube time in group A was significantly lower than the group B(P＜0.01) no subphrenic infection occurred in group A, but in group B 2 patients.The two groups had no cases of hepatic failure and death.

结果 应用创面封闭胶组腹腔引流量及留置引流管时间明显少于未应用创面胶组（P＜0.01）。A组无膈下感染病例，B组发生2例膈下脓肿，两组中均无肝衰及死亡病例。

In order to provide unified and high effect manage means, we build up theB/S long-distance learning model as teaching model based on xml to make upwith the lack of the current B/S three-layer model, such as the heavy load on theserver, etc.

在教学模型方面，针对目前 B/S 三层数据模型中服务器端负载过重等不足之处，本文构建了基于 XML 的 B/S 网络教学模型，目标是为教学系统提供统一、高效的管理手段。

There was a significant correlation between the depth of nasa oesophagus-tracheal introducer and the distance from the root of alae nasi to the tragus of ear(r=0.9118,P＜0.01),and the linear regressive equation was b=11.85+1.022a.

经鼻食管气管引导管的置管深度b与鼻翼根部至耳屏中点的距离a有十分显著的相关性(r=0.9118，P＜0.01)，直线回归方程式为b=11.85+1.022a。

Average deterrent rates of 50μgmL^(-1), 30μgmL^(-1) and 10μgmL^(-1) azadirachtin B against Tribolium castaneum sere 86.24%, 85.06% and 70.83% treatment after 24 h, and were 67.70%, 59.49% and 59.74% treatment after 48 h.

印楝素B对赤拟谷盗具有较好的忌避活性，处理后24h，50、30、10μgmL^(-1)的印楝素B对赤拟谷盗的平均忌避率分别为86.24%、85.06%和70.83%；处理后48h，其平均忌避率分别为67.70%、59.49%和59.74%。

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

The mtDNA COI, mtDNA COⅡand mtDNA Cyt b genes of different Trichogramma species and different geographical populations of the same Trichogramma species were sequenced, and the genetic distance and phylogenetic relationships of Trichogramma were respectively established based mtDNA gene sequences.

本研究成功测得了多种赤眼蜂不同种和不同地理种群mtDNA（COI、 COⅡ和Cyt b ）的基因序列，对赤眼蜂mtDNA基因序列从遗传距离和系统进化树进行分析，结果表明3个基因序列均适合赤眼蜂种一级的分子鉴定，不能用做种下阶元的区分，同时确定mtDNA Cyt b 基因为赤眼蜂蜂种鉴定的理想基因序列。

The mathematical relationship between the scattering of UCA and B-mode video intensity was set up on the basis of B-mode imaging principles.

根据B超成像原理建立了UCA的散射特性与视频强度之间的关系。

We used the immunohistochemical ABC method to detect the expression of NF-κB at 2、 6、 12、 24、 48、 72 hours after infected by Salmonella typhimurium, and we deal the data statistically with univariant analysis of variance and Student-Newman-Keuls multiplerange test.

三组分别在感染鼠伤寒沙门氏菌后2、6、12、24、48、72小时6个时点，用免疫组织化学方法(抗NF-κB p65抗体、ABC法，石蜡包埋)和阳性细胞面积分布率半定量测定小肠、结肠及肾脏中NF-κB活性表达百分率，采用单变量多因素方差分析和Q检验做统计学处理。

UV-B radiation increased amounts of total sugar and uronic acid in cell wall polysaccharides and changed the ratio of total sugar and uronic acid in pectin.

SNP对除果胶外的细胞壁各组分的作用与UV-B辐射相似，LNNA和PTIO对除果胶外的细胞壁其它组分的作用与UV-B辐射相反。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。