查询词典 density function

Highly precise quadra order non-linear formula is set up, which gives the satisfactory density value of highly pure aluminum (99.999~99.99999 %) at 20 oC.Linear approximate formula for the density calculation of 99.75% primary aluminum (molten point in the range of 658.7℃～1100℃) derived f...

以Jagrangian插值的二次多项式和一次多项式导出的 99.75 %原铝(熔点 6 5 8.7℃～ 1 1 0 0℃)的密度计算的线性近似式、该式子较文献〔1〕所述的还要简单，而数值计算结果却高度吻合。

The results showed that the main rice yield on nitrogen applied, planting density, reciprocity nitrogen applied and planting density was best remarkable and the ratoon rice yield was not remarkable.

结果表明：头季施氮量、栽培密度、施氮量与栽培密度互作对头季稻产量差异极显著，但对再生季产量差异不显著。

In main rice it used 150kg N per hm2and Planting density 225000 ~300000 hills per hm2 as 195~240kg N per hm2 and planting density 150000 ~300000 hills per hm2,It was work in that other supplemental culture measures of high yield, The two season high yield was cropped on ratoon rice cultivar.

头季每公顷施纯N 150kg与栽培密度22.5~30万丛搭配和每公顷施纯N 195~240kg与栽培密度15~30万丛搭配，配套其他高产栽培措施，再生栽培能获得两季高产。

To realize high storage density, the key and efficient way is to obtain optical storage materials capable of recording information in high density by means of laser beam with short wavelength.

为了达到高密度存储，关键而有效的方法是获得更短波长的光存储材料。

The effect of meteorological factors on the rats density could be evaluated by RSM model. This model was superior to linear regression model. The effect of meteorological factors on rats density was resulted from multiple factors and their interaction.

响应面分析法能够较好地应用于气象因子对鼠密度的影响，建立的响应面模型优于多元线性回归，气象因素对鼠密度的影响是多因素及交互作用的结果。

It has been found that the spectral energy density and radiation pressure of a Kerr nonlinear blackbody are larger than those of a normal blackbody, and there is a regular variety of the spectral energy density and radiation pressure in a Kerr nonlinear blackbody with the change of temperature and frequency.

通过和普通黑体比较发现，克尔非线性黑体的光谱能量密度和辐射压强都要比普通黑体大，非线性黑体中的热辐射光谱能量密度和辐射压强随着温度和频率的改变有着规律的变化。

The concept of grid relative density and boundary point extraction technique are proposed.Based on that,a clustering algorithm based on GRD for multi-density data sets is developed.

提出网格相对密度的概念和边界点提取技术，在此基础上给出了一种多密度聚类算法。

Relative density is defined as the ratio of the mass density of a substance to that of water under the same conditions of temperature and pressure.

相对密度系指在相同的温度、压力条件下，某物质的密度与水的密度之比。

Part 3 : determination of water absorption, apparent porosity, apparent relative density and bulk density.

第3部分：吸水率、外表孔隙率、外表相对密度和松密度的测量

NBR/modified montmorillonite and NR/HMMT nanocomposites were prepared by the mixing intercalation method with the monomers resorcin and hexamethylenetetramine complex . XRD and TEM showed that the interlayer spacing of HMMT had got much larger with RH addition and the layers of HMMT had dispersed in rubber matrix on nanometers. FTIR and crosslinking density results explained that chemical reaction had occurred between RH and rubber in the course of vulcanization, which improved the crosslinking density of rubber and enhanced the interaction between the rubber and HMMT.

采用单体混炼插层法，引入间苯二酚-六次甲基四胺的络合物，制备了橡胶／改性蒙脱土插层纳米复合材料。X-射线衍射分析表明：RH的加入使蒙脱土层间距不断扩大；TEM观察到无机片层在橡胶基体中纳米级分散；FTIR和交联密度的分析发现，在硫化过程中RH与橡胶发生化学键合反应，同时与改性蒙脱土相互作用，使得体系交联密度提高。

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。