查询词典 density function

Through the photographic technology of fisheye lens and achieved the space image of cotton canopy structure distributing at different condition, and setupped cotton canopy structure base after image analysis. The experiment results indicated that the adaptability of different varieties to plant density is different, reasonable plant density is benefit to the raise of varieties product, and Xinluzao10 is better at high density（225000plant/ hm2） condition and Xinluzao12 is better at mid-high density（150000 plant / hm2） condition. For different nitrogen, Xinluzao10 is better at right nitrogen application amount（600 kg/ hm2） condition and Xinluzao12 is better at mid-high amount（900kg/ hm2）condition. For different irrigation, Xinluzao6 and Xinluzao12 is better at limited drip irrigation amount（1500 m3/ hm2） condition and Xinluzao8 Xinluzao13 is better at right drip irrigation amount（3000 m3/hm2） condition.

利用鱼眼镜头照相技术获取了不同处理棉花冠层分布空间图象，对图像进行处理分析，建立了棉花冠层图像库及分析诊断指标，研究结果表明，不同品种对种植密度适应性不同，合理的配置种植密度有利于品种的产量潜力的挖掘，高密（225000plant/ hm2）条件下选择新陆早10号、中高密（150000 plant / hm2）条件下选择新陆早12号栽培种植较为适宜；对于不同氮肥用量，适量氮肥用量（600 kg/ hm2）条件下选择新陆早10号、中高氮肥用量（900kg/ hm2）条件下选择新陆早12号较为适宜；对于不同灌水量，限量滴灌（1500 m3/ hm2）条件下选择新陆早6号、12号种植较适宜，适量滴灌（3000m3/hm2）条件下选择新陆早8号、13号种植较适宜。

Results all of the 20 x-ray cases demonstrated the trabeculae bone hazy with pathy high density in the weight-supporting zone .all of the ct cases demonstrated the collapse of the femoral head. and the 4 cases demonstrated the high density, fragment of the femoral head and cystic lucency zone in the high density area and mixed density could be seen in 3 cases. the 4 mri cases demonstrated cystic hypointensity in t1wi and hyperintensity in t2wi. the 3 mri cases demonstrated mixed intensity in t1wi and t2wi,the 3 mri cases demonstrated irregular hypointensity with collapse of the femoral head in t1wi and t2wi.

结果 x线平片20 例，均表现为股骨头持重区骨小梁增粗且模糊不清，持重部位呈斑片状或斑点状密度增高影，本组均可见（占100%）。ct扫描20 例，平扫均表现为股骨头形态塌陷，其中显示高密度硬化4 例（占20%），股骨头碎裂，显示高密度区内有不规则透亮区，呈高低混杂密度改变有3 例（占15%）。mri扫描10 例， t1wi呈斑点状或小囊状低信号，t2wi为高信号，本组4 例，t1wi与t2wi均为不规则低、等、高混杂信号，本组3 例，股骨头塌陷、变形，t1wi与t2wi均为不规则形低信号3 例。

This article studies the conception of safe oxygen content by theoretical and experimental researches, and discusses the simple method to decide minimum oxygen density and critical value of oxygen density by chemical calculation and graphing method, and elementarily analyses the connection between minimum oxygen density and critical value of oxygen density.

理论上分别通过化学计算法和作图法探讨了最小氧浓度和临界氧浓度的简单确定，并初步分析了最小氧浓度与临界氧浓度的关系。

Rats with CHF were divided randomly into two groups, one group was injected dexamethasone(1mg /kg) intramuscularly at the first and forth day respectively,the other group was injected equi-volume saline likewise, and observing the changes of symptoms of rats with CHF; measuring rats hemodynamics index including blood pressure, heart rate and left ventricular end-diastolic pressure 4 days later. Part 2: To measure every group rats myocardialα1、β1、β2、β3-AR density by immunohistochemical method ,and to understand the AR density changes .Taking the first part rats'myocardium tissues for testing myocardialα1、β1、β2、β3-AR density and 5 normal rats for normo-contrast group and taking gray scale of slice as AR density. Part 3: The study enrolled 35 patients with DCHF. Patients were included if they had orthopnea and refractory edema due to acute DCHF that was severe and had taken more 1 week hospitalization and intravenous therapy in addition to diuretics.

观察心衰大鼠的症状，4天后对两组大鼠进行血流动力学检测，检测指标包括血压、心率和左室舒张末压；第二部分：取第一部分实验动物大鼠的心肌组织，并取5只正常大鼠的心肌组织作为正常对照，用免疫组化法检测大鼠心衰前后及糖皮质激素治疗前后大鼠心肌组织肾上腺素能受体α1、β1、β2、β3受体的变化，取镜下切片的灰度值反应受体的密度；第三部分：研究对象为临床难治性心衰病人35例，病人的选择标准包括由于急性失代偿的心力衰竭出现的端坐呼吸，难治性水肿，患者病情严重，住院超过1周，包括利尿剂之外药物的静脉治疗。

Of which,wet basis ash content is defined by gamma-ray log,and the precondition is the ash mainly argillaceous and contains no radioelement;carbon is defined by density log and artificial gamma log,and moisture calibration for density log ;saturated porosity is defined by density log after ash calibration;gas content is defined by acoustic log and density log compou.

其中以自然伽马测井确定湿灰分，该方法的前提条件是湿分主要是泥质且泥质不具放射性元素；以密度测井与人工伽马测井确定含碳量，并对密度测井作湿分校正；以灰分校正后的密度测井确定饱和水孔隙度；含气量的估算以声波测井和密度测井组成的复合参数ΔT/dDEN来确定，或以视电阻率曲线确定含气量。

The friction coefficient of the samples with low density of composite A increase with the prolonging of test time, while the samples with high density remain stable; the friction coefficient of the samples with low density of composite B exhibit ruleless results with the increase of load, while the samples with high density remain stable, too.

随时间延长， A 材料低密度试样摩擦系数升高，高密度试样的保持稳定； B 材料低密度试样的变化不规律，高密度试样能基本保持稳定。

There were high density images shaped as rope and slip in lungs of model control group rats and the pleura near the images were a little thickening. In MTX treated group, there were high density images shaped as slice along pulmonary veins. The veins of the blood vessels were obscure and the edges were unclear. In TPT treated group,there were multiple high density images shaped as tubercle and slice and the boundary were not clear. In XFC treated group, the lungs' outlines were clear and the veins were welldistributed. High density images shaped as spot were found in part lungs.

结果：HRCT表现为模型对照组大鼠肺轮廓欠清晰，肺部血管影扩张，边缘模糊且不规则，两肺有索条状密度增高影，邻近胸膜轻度肥厚；甲氨喋呤组大鼠肺部可见沿着肺纹理分布的斑片状密度增高影，肺血管纹理模糊，边缘不清楚；雷公藤多苷片组大鼠两肺可见多发性结节状及斑片状密度增高影，境界欠清晰；新风胶囊组大鼠肺轮廓清晰，肺纹理分布均匀，部分肺组织显示斑点状密度增高影。

Every treatment combination has 4 replications.(1)The germination indexes of the former are higher than that of the latter; the germination of the former is stimulated by NaCl density of 0.3 %, while that of the later is restrained by all kinds of NaCl density.(2)With increasing of temperature and PEG indesity,the order of germination rate and vigor of Bromus stamineus and Bromus inermis is decreaced.(3)Under treatment of broadcast sowing and plant density of 549kermels·m~(-2), Bromus stamineus has the highest bud rate, fresh weight, seed yield, while treated with 25cm row spacing and 412kermels·m~(-2) plant densities, tillers, plant height, growth rate increased to the top;(4) Under treatment of broadcast sowing and plant density of 549kermels·m~(-2), its growth rate is took second place, while treated with 15cm row spacing and 824kermels·m~(-2) plant densities, it has the highest seed yield

3撒播时，引进种在播种密度为549粒·m~(-2)处理下单位面积出苗率最高，分蘖数最多，鲜重最大，单株最高，种子产量最大；生长速度在播种密度为412粒·m~(-2)处理下生长最快，密度为549粒·m~(-2)处理下稍次之，结合方差分析可以初步确定它在撒播时的播种密度为549粒·m~(-2)；(4)条播时，在行距为25cm、播种密度为412粒·m~(-2)处理下单位面积分蘖数最多，鲜重最大，单株最高，生长速度最快；种子产量在行距为15cm、播种密度为824粒·m~(-2)处理下最大，在行距为25cm、密度412粒·m~(-2)处理下次之；结合方差分析，就3种规格的行距来说，引进美国无芒雀麦条播时的行距为25cm，播种密度为412粒·m~(-2)；就这两种播种方式来说，应该选择撒播。

The results showed that the highest density of microvessel was found in the stratum moleculare than other stratum,while the stratum pyramidale and stratum oriens were high density, mediate density respectively, and the lowest density was found in the stratum lacuno-sum.

结果表明，海马皮质各层的微血管密度，以分子层最高，以下依次为锥体细胞层和多形细胞层，而腔隙层最低。

Spatial heterogeneity of the eggs and adults in higher density, adults in lower density were caused by random factors, but spatial variability of the 2~4 instars nymphs in the higher density, and of the eggs and 2~4 instars nymphs in the lower density were spatially autocorrelated.

在高密度下卵和成虫及低密度下成虫的空间异质性是由随机因素引起，而高密度下2~4龄若虫及低密度下卵和2~4龄若虫的空间异质性是由空间的自相关因素引起。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？