查询词典 density function

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）。

Serum total cholesterol was determined by isopropanol withdrawing and ferric-glacial acetic acid -sulfuric acid developing method, serum triglyecride by isopropanol withdrawing and acetylacetone developing method,serum high density lipoprotein-cholesterol by magnesium phosphotungstate mehod, respectively. Serum low density lipoprotein-cholesterol was calculated by the equation: LDL-C=TCh--0.2 TG.

采用异丙醇抽提、三氯化铁-冰醋酸-硫酸显色法检测血清总胆固醇，用异丙醇抽提、乙酰丙酮显色法检测血清甘油三酯，用磷钨酸镁法检测血清高密度脂蛋白-胆固醇，用等式LDL-C=TCh--0.2TG计算血清低密度脂蛋白-胆固醇。

Results The strongest photoinactivation effect occured in the HEP-2 cells co-cultured with 1 mmol/L ALA for 8 h. The killing activity of ALA-PDT to the HEP-2 cells was positively correlated with the power density of the irradiation (r=0.88, P＜0.05).Conclusions ALA-PDT can effectively kill the cultured HEP-2 cells in vitro. The optimal killing activity was related to the time and the power density of the laser irradiation.

结果 (1)光照时机选择在ALA与HEP-2细胞培养8 h时杀伤效应最强；(2)ALA-PDT对HEP-2细胞的杀伤效应与照光能量呈正相关r=0.88，P 结论 ALA-PDT能有效地杀伤体外培养的肿瘤细胞，其杀伤最佳效果与照光时机和照光能量有关。

The density of copepods accounted for 72.45% of the total density, and planktonic larvae for 23.41%.

桡足类占浮游动物总密度的72.45%，其次幼虫占23.41%。

Compared with plant density of 150×10^4 planta/hm^2, photosynthesis attenuation rate of traditional plant density of 450×10^4 plants/hm^2 increased by 25.2~43.5 percent point, photosynthesis yield and relative electron transport rate of them decreased 2.95%~20.68% and 10.66%~18.32%, respectively, and the proportion of the reception of photosynthesis active radiation increased upper the layer of flag leaf, and decreased the proportion received lower the layer of flag leaf.

播量为450万株／hm^2处理比150万株／hm^2处理旗叶的光合衰减率提高25.2~43.5个百分点，光合量子产量和相对电子传递速率分别降低2.95%~20.68%和10.66%~18.32%，群体上层的光截获量增加，中下部受光条件较差。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。