平均密度

Results: The most common locations of PIP were at the margin of both lower lobes and associated with local pleural thickening and adhesion. The density of nodule in which CT attenuation value was 15~60 HU (26.9±13.5HU) was lower than that of PLC. Most of them were round/round-like and irregular in shape. The interior density of lesion was inhomogeneous. The presence of calcification or multiple cavitations, straight margin sign, hole sign and without hilar and mediastinal adenopathy were of great significance in the diagnosis of such kind of disease.

结果：炎性假瘤多位于两肺下叶，邻近胸膜增厚、粘连，病灶密度偏低（平扫CT值15~60HU，平均26.9±13.5HU），与周围型肺癌比较有统计学差异，其形态以圆形／类圆形和不规则形多见，病灶内密度多不均匀，可见钙化及多发空洞，边缘呈平直状、周围见毛玻璃样改变及肺门纵隔无淋巴结肿大等征象对本病的CT诊断有意义。

Results The amaranthine nuclei had a distinct outline and distributed evenly on the slide. The area of nuclei in liquidbased preparation was much smaller and chromatin was more condensed in comparison with those in conventional smear. The nuclei in conventional smears had the largest value of area and the value of AOD, and CV of IOD, the IOD ratio among diploid, tetraploid and octaploid DNA was most close to 2 and 4, and the CV of IOD exceeded 6%.

结果 三种涂片内肝细胞核分布均匀，轮廓清晰，呈紫红色，与传统涂片法相比，液基法内肝细胞核面积明显减小，染色质高度浓缩；相同倍体的肝细胞核在传统涂片中面积最大，平均光密度最低，各倍体间的比值最接近2和4，积分光密度CV值最低（。5）。

Thermal conductivity ; average relative atomic mass ; average atomic density ; functional crystal

导热系数；平均相对原子质量；平均原子密度；功能晶体

It can be seen that the bulk modulus depends mainly on electrons per atomic volume and mass density, while covalent structure of chemical bonding and N content make more contribution to theoretical hardness, and appropriate content N—N covalent bonding in the same direction tends to increase the shear modulus of nitrides.

说明在Tc的氮化物中，其体弹模量与材料的晶体结构、平均每个原子上的电荷密度和材料的质量密度有关；化学键的共价性结构和氮元素的含量对理论计算硬度有正作用；而剪切模量的极大值则与其层状结构及体系中一定量的方向基本一致的N—N键相关。

The effect of different discharge electrodes and settings on the experiment results is discussed in terms of average current density and relative deviation.

采用实验和数值计算相结合的方法，以极板表面平均电流密度、电流密度相对标准差为指标对电场性能进行了评价和预测，给出了几种电场性能较好的电极配置形式和几何参数调整范围。

Methods this experiment chose seven parameter of cell nuclear, including the area and integral optical density, determined the changes of DNA content in the kidney cellule of 15 rats at different intervals between 0 and 48h postmortem with auto-TV-image system.

方法应用电脑图像分析技术，测定了15只大鼠在死后48h内不同时间点大鼠肾细胞核DNA含量的面积、等效直径（Mean－Dia，MD）、异形指数（Indexofdensity，ID）、平均光度（Average optical density，AOD）、积分光度（Integral optical density，IOD）、密度变化数（L－Den－Coe，LDC）和平均灰度（Averagegray，AG）等七项参数的变化值。

The hybrid gel film on curved surface can replace traditional light-sensitive lacquer, and improve the grating's stability. The VLSG with the line density of 80l/mm was fabricated on a concave lens surface with curved radius of 100mm.

采用这种方法在曲率半径为100mm的凹球面基底上制作了平均线密度为80l/mm的光栅，并用环境扫描电镜以及数字图像处理法检测了光栅的线密度分布。

On defining the conditional threshold of discretized density evolution, a method for designing the time-invariant quantized decoder with finite levels, which can approach the optimal time-varying one and hence the continuous decoding, is proposed.

应用Shannon率失真理论以及密度进化理论，阐述了最佳量化译码的时变特性，建立了离散密度进化的条件阈值概念，提出了二元输入对称信道上逼近最佳时变量化译码、进而接近连续译码的时不变量化译码设计方法，推导了量化和积算法与最小和算法的等价条件，从误码率性能、错误平层和平均迭代次数等三个指标全面衡量量化译码性能； 5。

The major findings include:(1) By using fuel as the base indicator of relative efficiency, we found the following input factors' distribution inefficiency for domestic airlines: The distribution inefficiency of labor and capital input factors differs from airline to airline, and is becoming more severe with time; the distribution inefficiency of other factors does not differ very much among airlines but varies with time. It is inefficient from 1989 to 1995 but becomes more efficient during 1996 to 1997;(2) Airline companies have higher economies of density before 1996, but tend to show a constant return to density in 1997 when considering allocative distortions. The technical efficiency of input factors as a whole has declined after the open-air policy;(3) The costs of airlines are increasing significantly due to their distribution inefficiencies;(4) The instrument variable generated through a quasi price function does not have significant influence on cost; this may imply that airline companies in this time period did not exhibit the phenomena of high-quality high-price.

其主要结论如下：(1)藉由相对燃油分配效率探讨各投入要素之分配扭曲情形发现：劳动和因定投入要素之分配无效率因公司别而有所不同，且随时间而严重，唯民国86年稍有改善；其他要素之分配无效率则较不因公司别而有所不同，但亦随时间发生变化，初期为无效率，在民国85、86年则较具效率；(2)若考虑分配扭曲情形下，国内航空业在民国85年之前具有较高之密度经济，民国86年则趋向固定密度报酬；此整体投入要素之技术效率而官，在天空开放政策后其技术效率随时间变化而下降，但就燃油投入要素平均技术进步率而言，则其技术效率逐年增加且幅度明显；(3)航空公司因分配无效率所造成成本增加的情形相当明显；(4)准价格工具变数对成本之影响并不明显，此可能反映在此期间国内航空公司似乎并未趋向於高品质高价格之现象。

This equation is suitable for conditions of the pressure from 0.03 MPa to 53 MPa, density from 2.9 kg/m^3 to 1800 kg/m^3, and temperature from 204 K to 473 K. The average absolute deviations of this equation for gaseous phase pressure, vapor pressure and liquid density are 0.296%, 0.213% and 0.148%, respectively.

将该方程计算的HFC-227ea的pVT数据与实验数据比较后表明：两者的气相压力平均绝对值偏差为0.296%，饱和蒸气压平均绝对值偏差为0.213%，液相密度平均绝对值偏差为0.148%。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。