多酸的

Since Clayman successfully performed laparoscopic nephrectomy for an oncocytoma patient in June 1990, the laparoscopic technique in urology has been developed dramatically.

自从Clayman于1990年6月成功地为一位肾脏嗜酸细胞瘤患者施行腹腔镜肾切除术以来，腹腔镜技术在泌尿外科领域得到了较快的发展，尤其是随后5年，在肾、肾上腺、前列腺癌及输尿管结石的外科治疗方面，越来越多的泌尿外科医生开始采用这一技术，并且泌尿外科腹腔镜水平的高低成为衡量医院综合竞争力的重要标准之一。

There was a significant difference in apomorphine-induced rotational behavior between microencapsulated BCC graft group and non-microencapsulated BCC graft group (P ＜0.01). Conclusion Transplantation of BCC into brain can improve the abnormal rotational behavior in PD-like rats, which was correlated with the survival of BCC in the host brain. The micro-capsules from APA can decrease the host immune response to the heterogenic BCC grafts.

BCC脑内移植可改善PD样大鼠的异常旋转行为；大鼠旋转行为的改善与BCC在脑内的存活状态有关；海藻酸钠及多聚赖氨酸制作的微囊可降低异种BCC移植的排斥反应发生率。

Also, the infrared spectroscopy experiments proved that the surfaces of CNTs could be coated by hexadecyl trimethyl ammonium bromide in ammonia solution. The dispersion of modified CNTs in water was improved significantly.

实验结果表明，通过混合酸处理能够使CNTs表面拥有较多的羟基和羧基官能团；在氨水的作用下，CNTs能够被HTAB所包覆，而且修饰后的CNTs在水中的分散性能得到提高。

In this thesis, five polydentate ligands including azido, oxalate, terephthalic acid, isophthalic acid and Pyridine-2,6-dicarboxylic acid were used to construct new transition metal complexes (M = Ru, Fe and Zn). Eight new complexes as listed below were synthesized and fully characterized.

本论文以草酸根、叠氮根、对苯二甲酸、间苯二甲酸和吡啶-2，6-二羧酸等含O、N的多齿共轭配体为研究对象，合成了以下八个结构新颖的化合物，并对它们的结构和谱学性质进行了详细的表征。

Hybrid mesoporous molecular sieve materials with hexagonal mesoporous structure and covalent bonded polyoxometalates were synthesized based on tetraethoxysilane anti lacunary polyoxometalate, SiW11, via sol-gel method in the presence of triblock copolymers P123 as the structure-directing agent. The influences of molar ratio of inorganic precursors and aging temperature on the structure and the loadings of SiW11 in the hybrid materials were investigated. Some reaction details in the synthesis were revealed.

用嵌段共聚物P123为模板剂，正硅酸乙酯和缺位结构的多金属氧酸盐SiW11为无机前驱体，由溶胶－凝胶法合成了具有六方结构和SiW11共价键联的介孔分子筛杂化材料SiW11/SBA-15，着重考察了无机前驱的配比和老化温度对杂化材料结构及SiW11负载量的影响。

The sodium lignosulfonate with low molecular weight which has more hydroxyl groups and sulfonic groups, less methoxyl groups, has better corrosion and scale inhibition performances.

研究表明，分子量较小的木素磺酸钠级份含有较多的羟基和磺酸根、较少的甲氧基，具有较好的缓蚀阻垢性能。

Surface waxes of the pericarp were observed by scanning electron microscopy; the structure and composition of cell wall were studied using light microscopy, transmission electron microscopy and Fourier transform infrared microspectroscopy respectively; the changes of calcium in the cell wall were determined by atomic absorption and the integrity of cell membrane by conductivity meter respectively.

本论文采用扫描电子显微镜研究果实表皮蜡层的变化，用光学显微镜、透射电子显微镜和傅里叶变换红外光谱仪研究果实细胞壁结构和成分的变化，用原子吸收分光光度计测定细胞壁钙离子的变化，用电导率仪检测果实细胞的完整性。同时测定了果实酚类物质含量、多酚氧化酶(EC 1.10.3.1)活性、过氧化物酶(EC 1.11.1.7)活性，并分析了果实硬度、糖和酸含量等品质指标。

Recent developments of clean oxidation systems catalyzed by polyoxometalates are summarized in detail. The emphasis is on the epoxidation reaction of olefinic compounds, oxidation of alkanes and aromatic compounds with the comparatively ideal oxidants, hydrogen peroxide and molecular oxygen respectively.

文本总结了多金属氧酸盐在液相清洁催化氧化方面的进展，主要针对以过氧化氢和分子氧为氧化剂的烯烃类化合物的环氧化反应、烷烃和芳香族化合物的氧化反应，并详细探讨了此类氧化反应的反应机理。

Recent developments of clean oxidation systems catalyzed by polyoxometalates are summarized in detail. The emphasis is on the epoxidation reaction of olefinic compounds, oxidation of alkanes and aromatic compounds with the comparatively ideal oxidants, hydrogen peroxide and molecular oxygen respectively. The oxidation mechanisms are elucidated in detail.

文本总结了多金属氧酸盐在液相清洁催化氧化方面的进展，主要针对以过氧化氢和分子氧为氧化剂的烯烃类化合物的环氧化反应、烷烃和芳香族化合物的氧化反应，并详细探讨了此类氧化反应的反应机理。

Gerbera plantlets in 125 ml flask received 0, 2.5, 5, 10, 20 ppm Ethrel and 0.01, 0.1, 1 mM 1-aminocyclopropane-1-carboxylic acid to study the effect of ethylene and ethylene biosynthesis through cultured in vitro. The good quality plantlets which had more adventitious roots, no overgown stem, no etiolated plantlets by the addition of 5, 10 ppm Ethrel.

非洲菊(Gerbera jamesonii， Bolus)幼苗於试管内处理以0， 2.5， 10， 20 ppm的益收素及0.01， 0.1， 1 mM的环丙烷氨基羧酸(1-aminocyclopropane-1-carboxylic acid， ACC)以研究乙烯对试管苗之影响及乙烯生合成，结果以5及10 ppm的益收素处理能得到良好品质的苗，为多侧根不徒长，不白化的幼苗。

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。