查询词典 density

The first part discusses about the effects of the five factors:temperature,relative air moisture,rate of frass sifting,density of larvae,fodder water percentage to growth speed and survival rate of older mealworm (Tenebrio molitor L.) larvae through rotational composite design of quadratic regression. Two models were established to describe the effects of the five factors. The models showed that percentage of fodder water is the major factor that has effect on the growing speed of T. molitor larvae,and fodder water is the major factor on death rate. The models also show that temperature on growth speed,temperature and fodder have important effects on death rate,and the significant test showed they have significant difference on 1% or 5% level. From the two models,by frequency analysis,we can get the optimizing rearing condition,in which the mealworm larvae overweight 10% per day,temperature is 25-26 ,frass sifting rate is once 2-4 days,density of larvae is 0.61-0.79 g/cm2,fodder water is 33.27%-39.71%. And the rearing condition,in which total death rate of T.

第一部分：采用五因素二次正交旋转组合设计，以黄粉虫幼虫饲养过程中饲养温度(X_1)相对湿度(X_2)、虫粪筛除频率(X_3)、饲养密度(X_4)以及饲料含水量(X_5)五因素为参试因素，考查它们对黄粉虫高龄幼虫的生长及存活的影响，建立了以黄粉虫幼虫增重率及死亡率为目标函数的回归模型，并进行了简化： Y_增=127.5079+18.6559x_5+2.7894x_3x_4-2.3854x_3x_5-3.0594x_1~2+1.8241x_3~2-3.8559x_5~2 Y_死=1.7459+0.4108x_1+0.0975x_2+0.9025x_4+0.3442x_5+0.0834x_1~2+0.3060x_4~2-0.2623x_5~2 分析结果表明：影响黄粉虫幼虫生长后期增重及死亡的主要因素分别为饲料含水量和饲养密度；饲料含水量和温度对黄粉虫增重有着重要的影响，饲养密度、温度、饲料含水量对黄粉虫的死亡有着重要的影响，其影响均达1％或5％显著水平；黄粉虫幼虫后期日增重率大于10％的饲养条件为：温度26～27℃、筛粪频率2～4天／次、饲养密度0.61～0.79g／cm~2、饲料含水量33.27～39.71％。

Results: In the 13 cases, the CT diagnosis show that five cases of low-density lesions of Bilateral hepatolenticular, five cases of globus pallidus, one case of Bilateral hepatolenticular with corpus callosum, one cases of External capsule putamen, one case of Putamen with the caudate nucleus, three cases of low-density of Bilateral lobi frontalis and lobi parietalis, one case of unilateral putamen hemorrhage, three cases of cerebral atrophy.

结果 13例中，CT示双侧豆状核低密度5例、苍白球5例、双侧豆状核伴胼胝体1例、壳核伴外囊1例、壳核伴尾状核1例；双额顶叶低密度3例、单侧壳核出血1例、大脑萎缩3例。

The shape parameters of fruiter was detected by image processing,and based on the leaf density the influence of imaging distance on detecting the leaf density in the processing of image was studied.

该文通过图像处理技术检测果树的形态结构参数，并以果树树叶稀密程度为例，研究在图像处理时成像距离对树叶稀密程度检测的影响。

In order to reduce radiation on the operator, a remote-control nuclear surface moisture-density gauge is developed by improving the original nuclear surface moisture-density gauge .

摘要为减少放射源对仪器操作人员辐射的影响，对表层型核子水分－密度仪进行了改进，研制出遥读遥测式表层型核子水分－密度仪。

Sixty-nine years ago today, a ghost word was outed from its hiding place on page 771 of Webster's New International Dictionary, where it had spent five comfortable years. Dord started life on a slip of paper prepared by the lexicon's chemistry editor, who noted that "D or d" was an abbreviation for density. A serendipitous misinterpretation saw the entry being read as a single word, dord, and it was accordingly registered and printed up as a noun with the meaning "density." No proofreader caught the error, but five years later an editor noticed the word had no etymology and began the investigation that led to the word's being banished.

六十九年前的今天，一个谜一样的词被世人发现，这个词在韦伯斯特新国际字典的771页整整藏了5年Dord一词因为一张小纸片而开始了它的生涯，这张小纸片是由lexicon的化学主编准备的，他标注出了"D or d"是密度的缩写这条记录很偶然的被认为是一个完整的单词，dord之后它被作为一个名词收入词典并印刷出来，意思是"密度"所有的校对人员都没有发现这个错误，但是五年后，一名编辑注意到这个词没有词源，然后他开始溯源并最终将这个词从词典中去除

Of the 89 patients, 59 had columnar metaplasia with goblet cells, which were further separated into low-density goblet cell and high-density goblet cell groups based on the percentage of crypts with goblet cells, and 30 patients had columnar metaplasia of the esophagus without goblet cells.

这89例中，59例含杯状细胞，我们依据粘膜隐窝杯状细胞的比例又进一步将这59例分成低密度杯状细胞组和高密度杯状细胞组，另外30例不含杯状细胞。

For the minimum dry density test of sand, test devices are improved to simplify the procedures and the test steps are adjusted to reduce the measurement error. The reverse graduated cylinder method and the tilting graduated cylinder method are recommended as the best methods for minimum dry density test and for leveling sand surface respectively. The optimum sampling quantity and the times of reversing graduated cylinder are studied.

对最小干密度试验，改进了试验装置以简化操作手续；调整了试验步骤以减小测量误差；推荐只使用量筒倒转法测量，用量筒倾斜法整平砂面；研究了最佳取样量和量筒倒转次数。

In order to meet the needs of the practical industry, the property of ammonium phosphate and the effect of sodium humate on the habitude of slurry was investigated firstly by experiments:the relation between neutralization value of the slurry and the pH value, the relation between the boiling point and the density, water content and viscosity of slurry;the influence of sodium humate added into slurry on the relation between the neutralizing value and pH value, and on the density, water content and viscosity of the slurry.

为了工业的实际需要，通过实验，首先研究了磷铵料浆的性质以及腐殖酸钠对料浆性质的影响：料浆中和度与其PH 值的关系，料浆沸(来源：AB427242C论文网www.abclunwen.com)点温度与其密度、含水量及粘度的关系；添加腐殖酸钠对料浆中和度与其PH 值之间关系的影响，以及对料浆密度、含水量及粘度的影响。

Maxwell's equations group in fact was already found in the basic experimental laws of electromagnetic phenomena, as well as a single magnetic pole does not exist on the facts and the integrated displacement current assumptions, using an international system of units, these equations can be written as: DivDW =ρ or DW =ρ(1) kiDivBq = 0 or Bq = 0 (2) kiCurlEBq =- Zt or × EqkZ =- BqZt (3) ZCurlHDWDW = jE Zt, or × HW = jE Zkt (4) Z-type in the Curl, and Div were vector operator curl and divergence, Micro-k points for the Hamiltonian operator, in the rectangular coordinate system,= iZZEkx jEy kqz, iE, jE, kq along Zx, y, z-axis unit vector, a vector for any AW are × AW = CurlAW, kAW = DivAW; DW for the electric displacement, Bq for the magnetic induction intensity, Eq, and HW, respectively i field and electric field strength, jY for the conduction current density,ρ the charge density for free.

麦克斯韦方程组实际上是当时已发现的电磁现象的基本实验定律以及单个磁极不存在的事实和位移电流假设的综合，采用国际单位制，这些方程式可写成：DivDW＝ρ或DW＝ρ（1）kiDivBq＝0或Bq＝0（2）kiCurlEBq＝－Zt或×EqkZ＝－BqZt（3）ZCurlHDWDW＝jE＋Zt或×HW＝jE＋Zkt（4）Z式中Curl和Div分别为矢量算符旋度和散度，为哈密顿微k分算符，在直角坐标系中，＝iZZEkx＋jEy＋kqz，iE，jE，kq是沿Zx、y、z轴的单位矢量，对任一矢量AW有×AW＝CurlAW，kAW＝DivAW；DW为电位移，Bq为磁感应强度，Eq和HW分别为电i场和磁场强度，jY为传导电流密度，ρ为自由电荷密度。

Accurate measurement of static magnetic parameter of high-density hard-disk media is vital for research and development of high-density hard-disk.

高密度硬盘介质静态磁性参数的精确测量对研制高密度硬盘至关重要。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。