查询词典 average density

Zn-La alloys increase the overpotential ofhydrogen evolution, Tafel slope 〓 and polarization, decrease the corrosion current density, inhibitthe corrosion of zinc electrode in alkaline solution, decrease anode Tafel slope 〓, promotedischarge reaction of zinc electrode, have higher passivation current density, inhibit thepassivation of zinc electrode, avoid the oversaturation of zincate in electrolyte, greatly increase〓 diffusion coefficient, decrease Tafel slope 〓, polarization and the overpotential of deposition,inhibit the dendrites formation and improve the electrodepostion of Zn.

实验结果表明，Zn-La合金电极显著改善了锌电极的各项电化学性能：提高析氢过电位、析氢过程Tafel斜率〓和极化，减小腐蚀电流密度，抑制锌电极在碱液中的腐蚀；降低阳极Tafel斜率〓，促进了锌电极的放电反应；具有较高的维钝电流密度，抑制锌电极的钝化；有效避免了溶液中锌酸盐的过饱和现象：使〓的扩散系数明显增大：降低Zn沉积过程的Tafel斜率〓、极化和沉积过电位，明显抑制锌枝晶的生长，改善了锌的电沉积性能。

Compared with the natural recovery, artificial coniferous forest not only increased the number of species of bird community, but also significantly increased the density of birds, especially to significantly increase the density of Parus palustris hellmayri and Phylloscopus inornatus inornatus.

同自然恢复相比，人工针叶林恢复不仅提高了鸟类群落的物种数，还显著提高了鸟类的密度，特别是显著提高了沼泽山雀、黄眉柳莺的密度。

Objective:To measure the volume and density of normal and pathological tonsil of human body,to search for the relevance between valume ,density and its tissue morphology.So as to provide the diagnostic basis for clinical medicine,anatomy,pathematology of human tonsil.

目的：检测正常腭扁桃体和不同病变程度的腭扁桃体的体积和组织密度，探讨其体积、密度与组织形态学的关联性，为临床医学、解剖学、病理学提供简便、可靠的科学依据。

The apoplasmic charater of ectomycorrhizal roots of Larix seedlings infected with Paxillus involutus was examined using the cathnic colloidal gold. The result showed the density and distribution of anionic binding sites were different in sheath and Hartig net. The negative charger in the outer part of the sheath was slightly low. It increased graduately from outer to inter sheath. The negative charger density rised higher in the inter part of the sheath and then decreased graduatedly from the sheath to Hartig net. This may be related to nutrient uptake and atransport in ectomycorrhizal roots.

利用阳离子胶体金探针研究日本落叶松和卷缘桩菇形成的外生菌根质外体的特性，结果表明，外生菌根质外体负电荷分布是不均一的，在菌套外侧负电荷比较低，向内侧逐渐增高，在靠近单宁层菌套菌丝细胞壁负电荷密度最高，再向内侧过度到哈蒂氏网又呈现出明显逐渐下降的现象，而且在哈蒂氏网负电荷主要分布在植物的细胞壁，真菌菌丝细胞壁负电荷很少。

Summary: The hormone of the different density in adoption 3-IBA take root the research with the nourishment liquid of the different density to the Peperomia obtusifolia water Grow.

采用不同浓度的激素和不同浓度的营养液对豆瓣绿进行水培生根研究。

With 5 plants including Lindernia rotundifolia, Cryptocoryne crispatula, Hygrophila stricta, Microrium sp. and Peperomia sandersii as the tested materials and the highest eutrophic lake water from Guishui Lake in Yanqing County in Beijing City as the matrix of plant growth, 3 test groups with high, middle and low input density were set up to study the effect of input density of aquatic plants on the purifying efficiency of the eutrophic lake water.

方法］以小瓜子、缎带椒、中柳、皇冠和西瓜草5种植物为试材，以北京市延庆县妫水湖8月份富营养化程度最高的湖水为植物生长基质，设高、中、低3个投放密度试验组，研究植物投放密度对富营养化湖水的修复效率影响；通过测定水样中总磷酸盐、总氮、氨氮和硝态氮的浓度变化，确定植物修复的最佳效率。

Results When CT imaging showed pancreatic density uniformity and no peripancreatic fluid collection,the pancreatitis recurred rarely following DAR therapy for 3 days,and when CT imaging showed pancreatic density asymmetry and peripancreatic fluid collection,it needed DAR therapy for 14 days.

结果如果CT表现为胰腺质地均匀、胰周无渗出，DAR疗法连用3 d，停药后复发的概率很小。如果CT表现为胰腺质地不均、胰周有渗出，DAR疗法连用14 d，停药后复发的概率极小。

Results Both the area density of stroma and the ratios of stroma to epithelium were the highest in the periurethral zone and the lowest in the supcapsular zone. While the area density of epithelium and glandular lumen in the periurethral zone was significantly lower than those of peripheral zones.The ratios of glandular lumen to epithelium among three zones were not statistically different.

结果 间质面积百分比和间质/上皮比值在尿道周围区、中间区和包膜下区中均依次递减( P ＜0.01)，而上皮和腺腔面积百分比则依次递增( P ＜0.01)；三区间腺腔/上皮比值差异无显著性。

From the experiment discovered for the first time the dimethyl ether may substitute CO to take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and optimized the CH_3OCH_3-NO-HO_2 chemistry amplifying system determination condition, the CH_3OCH_3 best density is 1.876 ppmv, the NO best density is 1.3ppmv, and obtained this method chain length CL=124, 5 parallel determinations densities of HO_2 are the 44.0pptv, the relatively standard deviation is smaller than 4%; Although chemistry box model computed result indicated the dimethyl ether, the ethene, the propene and the ethanol all can take the chain-carrying agent of the peroxy free radical chemistry amplifier system, and their simulation chain length all grows up compared to the CO-NO-HO_2 chemistry amplifying systems, but experiments proved the ethene, the propene and the ethanol have not suit the chain-carrying agents.

首次从实验上发现二甲醚可以替代CO作为过氧自由基化学放大系统的链传递试剂，并优化了CH_3OCH_3-NO-HO_2化学放大系统的测定条件，CH_3OCH_3的最佳浓度是1876ppmv，NO的最佳浓度为1.3ppmv，并得到了这一方法的链反应长度(CL=124)，5次平行测定浓度为44.0pptv的HO_2自由基，相对标准偏差＜4％；虽然化学盒子模式计算结果表明二甲醚、乙烯、丙烯和乙醇都能作为过氧自由基化学放大系统的链传递试剂，并且它们的模拟链长都比CO-NO-HO_2化学放大体系的链长大，但是实验证明乙烯、丙烯和乙醇不适合作为过氧自由基化学放大系统的链传递试剂。

The proportion of GGT complexed with low density lipoproteins plus very-low density lipoproteins in total GGT in serum is determinated with ratio colorimetery,sodium phosphotungstate and MgCl2 as precipitation.26 patients with liver cancer,18 with liver cirrhosis,22 with chronic hepatitis,14 with the other malignant tumors,16 with non-hepatobiliary disease of high GGT and 50 healthy subjects have been evaluated.

本文以磷钨酸－氯化镁作沉淀剂，速率法测定血清低密度脂蛋白，极低密度脂蛋白结合的r－谷氨酰转移酶（LDL－VLDL－GGT）占总GGT的百分比。对临床26例肝癌、18例肝硬化、22例慢性肝炎、14例其他恶性肿瘤、16例GGT升高的非肝脏疾病及50例健康人进行了检测，结果表明：肝癌组明显高于其他各组，差异显著（P＜0.01）。肝脏疾病升高幅度：肝癌＞肝硬化＞慢性肝炎，且每两者间有显著差异（P＜0.01）。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。