查询词典 average density

There were different leaves structure between resistant and susceptible cultivars, the leaves structure studied included thickness of leaves, No.of palisade tissue, density of palisade tissue, thickness of the first line palisade cell, thickness of the second line palisade cell, density of inter-epidermal cell and density of exter-epidermal cell.

对大豆灰斑病抗病品种和感病品种的叶片组织结构，主要包括栅栏组织层数、栅栏组织密度、上下表皮细胞密度、蜡质含量及叶比重等，进行了比较研究。

The change of frequency, draws the conclusion through observing fish's respiratory rate and coughing: Luo is not the respiratory rate of fish and bright cloud porgy, drop with increase of Cu2+ density, cough frequency increases with increase of Cu2+density; Respiratory rate and frequency of coughing of black carp, appear downward trend after rising with Cu2+ increase of density first.

通过观察鱼呼吸频率和咳嗽频率的变化，得出结论：罗非鱼和彩云鲷的呼吸频率，随着Cu2+浓度的增加而下降，咳嗽频率随着Cu2+浓度的增加而增加；鲫鱼的呼吸频率和咳嗽频率，随着Cu2+浓度的增加都呈现先上升后下降的趋势。

Sset future prices can be forecasted with filtering historical simulation by drawing from standardized residual density. The problem of inappropriate risk neutral assumption could be resolved by the calibration from density transformation. The transformation is to identify the state price density per unit probability through the parameter re-estimation by minimizing the mean squared error of market and model prices.

bstract：使用残差机率分配抽样的过滤历史模拟法可以作为未来资产价格的预测，而风险中立假设不适当的问题则可透过风险测度的转换予以解决，该转换过程系将市场价格与模型价格的均方差极小化求得估计校正后的新参数，作为状态价格机率分配的转换机制。

On day 7, 15, 30 after injection, the renascent blood vessels were more in number, the KDR area density and the KDR mRNA expression in splenic tissues were higher in VEGF group than the control group, while on day 60 there were no significant differences in the area density of renascent blood vessel, the KDR area density and the KDR mRNA expression between the two groups.

外源性VEGF能够促进移植脾组织内血管生长，自体脾组织移植术后7~15 d开始静脉应用VEGF是促进血管再生的较理想时间；外源性VEGF可能是通过与移植脾组织内所表达的KDR结合发挥作用。

Using quadratic rotational regression combination design to study the influence on yield and economic characters in different fertilizer and density of the rape, the result showed that the influence of density and fertilizer on yield and active silique per plant were significant but the quantity and weight of seed, while the influence of density on active silique per plant was higher than that of fertilizer but on yield was contrary.

结果表明，在本试验范围内，施肥量和密度对油菜单株有效角果数和产量均有显著的影响，对单株有效角果数的影响是密度大于施肥量，而对产量的影响则是施肥量大于密度；单株有效角果数的最佳组合为施肥量以纯氮227.0kg/hm2、密度9.4万株/hm2，产量的最佳组合为施肥量以纯氮235.7kg/hm2、密度10.6万株/hm2；当控制施肥量、密度分别为214.4—256.9kg/hm2、10.1—11.1万株/hm2时，油菜产量可达3000kg/hm2以上。

To realize the simple and accurate measurement of solution density,the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

To realize the simple and accurate measurement of solution density, the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

摘 要：为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

Background— Numerous in itro studies suggest that sphingosine 1-phosphate (S1P), a bioactie lysosphingolipid associated with high-density lipoproteins, accounts at least partly for the potent antiinflammatory properties of high-density lipoprotein and, thereby, contributes to the antiatherogenic potential attributed to high-density lipoproteins.

背景——众多的活体研究表明鞘氨醇1-磷酸盐作为一种与高密度脂蛋白相关的生物活性溶血磷脂，至少是高密度脂蛋白有力抗炎特质的部分原因，从而促成高密度脂蛋白的抗动脉粥样硬化潜能。

Pulse power system has been widely used in high technology fields, whose developing direction is high storage density, light weight and small volume. Its kernel problem is to establish a pulse power storage system with high storage density. High storage density capacitor is one of the important research projects.

脉冲功率系统已应用于许多高科技领域，向高储能密度、轻量化、小型化等方向发展，其核心问题是建立高储能密度的脉冲功率储能系统，而高储能密度电容器是主要的研究对象之一。

This paper made a kind of with Xiu water forecast l aw determine high density volatilize phenol dilute multiple, have offer de a kind of scientific accurate operating analysis method for being in height of density sample, simplefast, can ensure high density volati lize successfulness and the reliability of phenol sample analysis, have great application and extending valu

提出一种以溴水预测法确定高浓度挥发酚稀释倍数，为高浓度水样提供了一种科学准确的操作分析方法。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了