查询词典 average density

In this article, three kinds of prealloy powder were developed by water atomization method. The base attribute, pattern, phase composition, differential thermal analysis of powder were researched. Sintered density, hardness, bend strength, Young's modulus were researched as hot pressed sintering temperature changing. By using abrasive wearing equipment upbuilt by the authors, the wear resistance were determined. Green-pressing density, simulated green-pressing strength and bonding momental of high frequency brazing were assayed. SEM corrosion structure and SEM appearance of fracture were observed.

本文采用水雾化法开发了三种预合金代钴粉末：对粉末的基本属性、形貌，粉末的相组成，粉末的差热性进行了分析研究；测定了它们的烧结密度、硬度、抗弯强度、弹性模量随热压烧结温度变化的规律；采用作者自行建立的磨料磨损试验方法，测定了它们的质量磨损百分率；测定了它们的冷压生坯密度、模拟生坯强度以及高频钎焊的结合力矩；观察了热压烧结SEM腐蚀组织和SEM断口形貌。

Mytilus edulis dominated the biomass and density of the macrobenthic fauna on the two sections. The biomass and density of the mid intertidal zone were greater than those of the low zone.

中潮带的生物量和平均栖息密度远大于低潮带；贻贝作为绝对优势种主导着2个断面生物量和栖息密度的分布特征。

The theoretical analysis shows that the wave-activity relation presented a nonconservative form in which the pseudoenergy wave-activity density is composed of disturbance kinetic energy, available potential energy and buoyant energy. The local change of pseudoenergy wave-activity density depends on the combination of shear of zonal basic flow, Coriolis force work and wave-activity source or sink as well as wave-activity flux divergence.

理论分析表明，拟能量波作用方程具有非守恒形式，其中的拟能量波作用密度主要由扰动动能、有效位能和浮力能三部分组成；拟能量波作用密度局地变化除了受拟能量波作用通量散度影响之外，纬向基本气流切变、科氏力作功以及由非绝热加热和水汽相变所构成的波作用源汇项对其也都有贡献。

According to the regression equations of initial crystallization temperature, the solubility of alumina and density at the temperature of 20 ℃ above its ICT of (2.23～3.0)NaF.AlF3-(0～5%)LiF-(0～15%)CaF2 system,the ICT isograms within the range of 910～950℃ and the density isograms at nonequal temperature within the range of 2.04～2.20g/cm3 under the 6%, 8%, 10%solubility of alumina were first obtained respectively.

基于(2.23～3.0)NaF.AlF3-(0～5%)LiF-(0～15%)CaF2系熔体初晶温度、变温氧化铝溶解能力和变温密度的研究，首次得到了氧化铝溶解能力为6%，8%和10%时温度范围在910～950℃的等溶初晶温度和密度在2.04～2.20g/cm3之间的等溶变温密度。

According to the definition of OCSP, patients were classified into the following 4 clinical subgroups:total anterior circulation infarcts, partial anterior circulation infarcts, lacunar infarcts, and posterior circulation infarcts by 1 neurologist.The frequencies were compared between subgroups, In the subgroup of which frequency was hightest, progressive and nonprogressive patients were compared in terms of the following variables:age, gender, hypertension,diabetes mellitus,cigarette smoking, The Canadian Neurological Scale Score at entry, systolic blood pressure at entry,fever at entry(body temperature37°C),stochastic blood glucose at entry, total cholesterol, triglyceride, high-density lipoprotein, low-density lipoprotein, fibrinogen, large-artery atherosclerosis (50% stenosis or occlusion of the corresponding artery).

对进展性脑卒中发病率最高的亚型，选取年龄、性别、既往高血压史、糖尿病史、吸烟史、入院时加拿大卒中量表(The Canadian Neurological Scale Score，CNS)评分、入院时收缩压、入院时发热(体温大于37°C)、入院时随机血糖、胆固醇水平、甘油三酯水平、高密度脂蛋白水平、低密度脂蛋白水平、纤维蛋白原水平、相应大动脉粥样硬化(≥50%狭窄或闭塞)共15个可能的危险因素进行评定。

The appearances of nonvascular lesions were as the following : solitary, huge cystic lesions with wall and septa obvious enhancement were found in malignant enbryonal sarcoma; mixed density mass with necrotic cystic change and solid portion enhanced obviously in carcinosarcoma; intrahepatic huge low density, cystic changes, calcification and margin enhancement were found in leiomyosarcoma.

血管源性表现为肝内多发低密度灶，强化明显，非血管源性表现为肝内巨大单发囊性病灶，增强囊壁和分隔明显强化；癌肉瘤表现为混杂密度肿块伴有坏死囊变，增强实质部分强化；平滑肌肉瘤表现为肝内巨大低密度病灶，可伴有囊变及钙化，增强见边缘强化。

Objective To survey the relationship between nutrimental condition and the levels of serum lipids and lipoprotein. Methods The levels of total cholesterol, triglycerides high density lipoprotein cholesterol, low density lipoprotein cholesterol, apolipoprotein A1 (apoA1) and apolipoprotein B100(apo B100) B100 in 514 middle school students aged from 12 to 15 years old in Haikou City were determined.

目的 探讨营养状况与血脂及载脂蛋白水平的关系方法检测了海口市514例12～15岁中学生的营养状况并分析其与血清总胆固醇(Total-Cholesterol，TC)、甘油三酯(Triglycerides，TG)、高密度脂蛋白胆固醇(High Density Lipoprotein Cholesterol，HDL-C)、低密度脂蛋白胆固醇(Low Density Lipoprotein LDL-C)、载脂蛋白(Apolipoprotein，apo)A1及B100的关系。

The test results show that density and the total phosphorus content of HEDPA have linear relationship. The content of phosphorus can be converted by subtracting the contents of impurities, namely phosphorous acid and orthophosphoric acid, so that the content of active component can be determined directly with density.

通过实验发现密度与HEDPA中总磷含量呈线性关系，减去杂质即亚磷酸和正磷酸含量换算出磷含量，即可通过测量密度直接测出活性组分的含量。

Mensurated blood glucose, total cholesterol, low density lipoprotein, high density lipoprotein, triglyeride with venous blood drawed on an empty stomach. In addition, we measured ABI results of the same subject using Doppler and Oscillometric measurement.

抽取晨起空腹静脉血标本，应用标准方法测量如下血液指标：血糖、甘油三酯、总胆固醇、低密度脂蛋白胆固醇和高密度脂蛋白胆固醇。

The calculating results are compared with the test data in available literatures and FEM results. The research results show that the plastic hinge model is precise and correct, which can satisfy with the actual engineering demands. The collapse pressure of perforated liner casing decreases with phrase angle, initial ovalization and diameter-thickness ratio increasing, and increases with the yield stress. The phrase angle and initial ovalization have greatly influence on the collapse pressure. The collapse pressure of perforated liner casing is slightly changed with the diameter and density of perforation when the diameter and density are smaller than 12mm and 120 shots per meter, respectively.

计算结果表明：筛管抗挤强度的塑性铰模型具有很高的计算精度和准确度，可以满足工程实际需要；筛管抗挤强度随着射孔相位角、径厚比和初始椭圆度的增加而降低，随着屈服强度的增加而增加，相位角和椭圆度对筛管抗挤强度影响比较显著；在射孔直径小于12 mm、射孔密度小于120 孔/ m 时，筛管抗挤强度随射孔直径和射孔密度增加变化不明显。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。