株

Ceftazidime shows similar MIC on mucoid or nonmucoid strains in routine microbroth dilution test. In nonmucoid strains,both planktonic and sessile bacteria are sensitive to ceftazidime and 4μg/ml azithromycin shows little effect on the MBCs of ceftazidime while in mucoid strains, sessile bacteria in biofilms show high MBCs of ceftazidime and adding 4μg/ml azithromycin brings obvious reduction in MBCs of ceftazidime and enhance the sessile bacterial sensitivity to ceftazidime.

在非粘液型菌株，悬浮菌和BF菌均对头孢他啶敏感，加入4μg/ml阿剂毒素对头孢他啶的MBC影响较小；在粘液型菌株，头孢他啶对BF中的座生菌MBC增高，而加入4μg/ml阿剂毒素明显降低了头孢他啶的MBC，显示阿剂毒素增强了座生菌对头孢他啶的敏感性。

And 14 isolates were characterized as Micrococcus sp..

在输液器外壁获得了 1株桔红色的菌株，其D10 为 4 0kGy。

Methods The isolated viruses were tested for their physico-chemical properteis,examined by electron microcopy and specific immuno-reactivity.

对分离的15株虫媒病毒中的3株进行理化特性分析，电镜检查以及特异性免疫反应观察。

Twenty clones showed a high level of tetracycline resistance (over 200 microgram tetracycline per ml).

测定了这些含有重组质粒的菌株抗四环素能力，其中有4株在平板上抗四环素水平超过225微克/毫升。

Observation was made on the cell morphology of the microspore development of the sterile and fertile plants in the Aibai wheat.

对矮败小麦中的可育株和不育株进行了小孢子发育过程的细胞形态学观察。

In chapter 5, the concept of zero-span tension known in papermaking area is for the first time introduce to wood science area to explore in-tree variation of longitudinal tensile strength of tracheids and its main influencing factors. In chapter 6, composite micromechanics and classic laminated theory are used to make a comprehensive and detailed analysis of the main influencing factors of mechanical properties of tracheids cell wall. Some experimental results acquired in the foregoing chapters are explained successfully. Results were summarized as follows: Mechanical characteristics of wood at micron scale: 1 At micron scale, the longitudinal mechanicai behavior of wood microtome section differs greatly from that of wood with normal size.

论文的第2章首先研究了微米尺度下木材的力学特性，为后面运用木材微切片拉伸技术奠定一定的理论基础；在第3章，首次考虑到了微米尺度下木材力学性质的尺寸效应，并运用木材微切片正常间距拉伸技术研究了管胞纵向弹性模量的株内变异规律；在第4章，首次利用纳米压痕技术中最新发展起来的连续刚度测量法直接在管胞细胞壁上进行纳米级的压痕实验，测量次生壁S〓层的纵横向弹性模量和硬度，从而把细胞壁力学的研究提高到一个更高的水平；在第5章，首次把造纸领域的零距拉伸技术引入木材科学研究领域，研究了管胞纵向抗拉强度的株内变异规律及其主要影响因素；第6章则运用复合材料细观力学的基本理论和经典层板理论对影响细胞壁力学性能的主要因素进行了全面而系统的分析，并为前几章的一些实验结果提供理论上的解释。

Four new aerobic bacteria, which could degrade and mineralize atrazine and other s-triazine dericatives were isolated from the different locations impacted by herbicide spills.

本试验从不同的、曾被均三嗪类除草剂污染过的环境中分离到四株能降解CIET的细菌菌株，对它们的生理生化、分子生物学特性以及对均三嗪类除草剂的降解性作了系统研究；总结如下： 1。

Methods 14 strains were isolated, cultured and identified by routine methods. 10 strains of them were typed molecularly by DNA sequence analysis.

方法用常规方法分离、培养、鉴定14株念珠菌并对其中10株作DNA序列分析，确定分子型别。

Extracting DNA of the cells treated with pure AK-11, the result showed that it could cause DNA of the cells breaking to Mono- and Oligo-nucleosomes.

采用流式细胞光度术对具有诱导细胞凋亡作用的AK-11菌株及DDRT检测毒性的AK-17菌株，进行细胞周期的分析。

Inducible and constitutive expression vectors for monocotyledonous plants were constructed and used to transfer into maize calli. Plants were differentiated and regenerated from the positive calli screened with gradient concentration of hygromycin. 4 transformed plants with inducible expression vector and 2 with con

PCR检测获得4株用诱导型表达载体转化的植株和2株用组成型表达载体转化的植株，为进一步研究抗逆相关转录因子基因分eb在单子叶中的表达调控，培育抗逆玉米材料打下基础。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。