Density Functional Theory method was used to optimize the geometries of 209 PCDE molecules, 209 PBDE molecules and 75 PCDD molecules at the B3LYP/6-31G* level. Using computed structural parameters as theoretical descriptors, the forward stepwise multiple regression technique was adopted to obtain QSPR models of environmental partition properties for these POPs by using GQSARF 2.0 and SPSS12.0 for windows programs. The obtained QSPR models are as follows:(1) QSPR models for predicting subcooled liquid vapor pressure, n-octanol/water partition coefficients lgK_(ow and subcooled liquid water solubilities -lgS_(w, l of PCDEs, of which correlative coefficients (R~2) are 0.988, 0.958 and 0.959 and the root-mean-square-error of estimation are 0.134, 0.116 and 0.327 respectively.(2) QSPR models of lgPL and n-octanol/air partition coefficients lgK_(oa for PBDEs, which both contain three structural parameters. The values of R2 for the two models are both 0.997 while the values of RMSEE are 0.073 and 0.062 respectively.(3) QSPR models of lgKow and–lgS_ for PCDEs, which both have one variable (mean molecular polarizability, α). The values of R~2 for the two models are 0.978 and 0.866 and the values of RMSEE are 0.300 and 0.270 respectively.(4) The molecular structures of 24 substituted naphthaline compounds were optimized using Hartree-Fock and DFT methods at four different levels and the same means was used to obtain four three-parameter (EHOMO, q~+ andα) QSPR models of lgK_. The model at the HF/6-311G** level is the best one of which R2 is 0.9662 and RMSEE is 0.380.(5) QSPR study for environmental partition properties of PCDEs was also performed using position of Cl substitution method in which simple parameters of substitution position were taken as descriptors. The multiple linear regression was performed with GQSARF 2.0 and SSPS 12.0 for windows programs to obtain QSPR models of lgP_L, lgK_ and–lgS_ for PCDEs of which R~2 are 0.991, 0.983 and 0.965 and RMSEE are 0.311, 0.100 and 0.300 respectively.
采用密度泛函理论方法在B3LYP/6-31G*水平上对PCDEs、PBDEs和PCDDs的分子结构进行了全优化计算，以计算得到的量子化学参数作为理论描述符，采用GQSARF 2.0和SPSS 12.0 for windows统计程序进行正向逐步回归分析，建立了这些POPs的环境分配性质的QSPR模型：(1) PCDEs的过冷液体蒸汽压、正辛醇/水分配系数lgK_(ow和水溶解度-lgS_(w，l的QSPR模型，这3个QSPR模型的相关系数(R2)分别为0.988、0.958和0.959，估计的均方根误差分别为0.134、0.116和0.327；(2) PBDEs的lgPL和正辛醇/空气分配系数lgK_(oa的QSPR模型，这两个模型都包含三个分子结构参数，其R~2都为0.997，RSMEE分别为0.073和0.062；(3) PCDDs类化合物的lgK_和-lgS_w的QSPR模型，两个模型都只含一个变量，其R~2分别为0.978和0.866，RSMEE分别为0.300和0.270；(4)采用Hartree-Fock和DFT方法，在4种不同水平上优化计算了24个取代萘系列化合物的分子结构，采用上述同样的方法分别建立了四种水平上的三变量lgK_模型，通过比较得到，在HF/6-311G**水平计算得到的模型最好，R为0.966，RSMEE为0.380；(5)同时，采用氯原子取代位置方法对PCDEs的环境分配性质进行QSPR研究，建立了PCDEs的lgPL、lgK_和-lgS_的QSPR模型，其R~2分别为0.991、0.983和0.965，RSMEE分别为0.110、0.100和0.300。
It also showed that the main influencing parameters of the uniformity of LGP front, middle and rear regions are the angle and interspacing of incidence side V-Cut.
导光板均齐度最主要影响参数前区域为底部V-Cut角度、其次为底部V-Cut间隔；中区域为底部V-Cut间隔、其次为入光侧V-Cut角度；后区域为入光侧V-Cut间隔、其次为底部V-Cut间隔。
Difficulties: energy analysis and calculation on Rankine, Reheat and cycle.
难 点：蒸气压缩制冷循环的工作原理及 lgp-h 图和 T-s 图。
LGP can be used on a computer on a domain, and it can be used on Windows XP Home Edition.
导光板可用于一台计算机上的域，它可以在Windows XP家庭版使用。
In accordance with the idea of generalized phase rule, we have studied the necessary condition of existence of predominance area of phase diagram, in which the number of required message input has been reduced to minimum, and set up the computer program for automatically drawing and calculation.
本文根据广义相律的概念，从热力学上分析了优势区相存在的必然条件。在TQ16计算机上建立了绘制lgP_i-lgP_j优势区相图的通用程序，该程序简捷，运算速度快，要求用户输入的信息最少，可以得到的计算结果最多。
Back Light Module was made by light source, LGP, BEF, Diffuser, reflect plate, plastic frame.
背光模组是由灯源、导光板、增亮膜、扩散片、反射板、偏光膜、塑胶框等所构成。
The vapour pressure of Mg, P_, over their thermal reduction of Mg withreducing agent, a high Al alloy containing Si 18.9% and Fe 5.1%, at varioustemperatures was measured by the transportation method as:lg P_=-8853/T+10.58As compared with ferrosilicon as reducing agent, the reduction temperature maybe reduced about 200℃ at the same P_.
本文以含高Al(Al76％，Si18.9％，Fe5.1％)的Al-Si-Fe合金为还原剂，在不同温度下进行热法还原Mg实验，测定了Mg的蒸气压为lgp_=-8853/T+10.58。与用Si-Fe还原剂相比，在相同的p_下，还原温度可下降约200℃。
Lastly, the continuous absorption coefficients a_c (T, lgP_e) of a H particle are calculated for the atmosphere of the solar photosphere type (see Table 3).
最后对太阳光球型大气（见表3），计算了以一个氢粒子为单位的连续吸收系数ac（T，lgPe）。
Managing to control the density of diffused dots is a main approach to make the light transmit ahead and up in LGP effectively.
设法控制好扩散网点的密度是有效地实现导光板的使光线向前传播、向上传播目的的主要途径。
And clarified the inhibiting mechanism farther by analyzed the correlation between the inhibition efficiencies and some quantum chemical parameters, such as orbital energy, charge density of frontier orbital, charge distribution, distributive coefficient, polarizability;
并通过分析轨道能量、前线轨道电荷密度、电荷分布、分配系数lgP、极化率Polar等量化参数与缓蚀效率的关系，进一步阐明了药剂的缓蚀作用机理；
Objective To observe and evaluate the intraocular pressure (IOP) lowering effect and complications of laser goniopuncture (LGP) after non-penetrating trabeculectomy (NPTS).
目的观察和评价非穿透小梁手术（NPTS）后YAG激光房角穿孔术（LGP）的降眼压效果及并发症。
The simulated result of large LGP made by many modules for dynamic display is showed, and the experiment of light guide plate module is demonstrated.
在该模块拼接的基础上进行了动态显示的模拟，并对单个导光板模块进行了实验的验证。
Based on statistics, the relationship between chromatographic retention behaviour and induced effect index I, molar refractivity RD, hydrophobic parameter lgp, as well as molecular connection 1 X are studied.
利用数理统计方法研究了诱导效应指数I，摩尔折射度RD，疏水亲脂参数1gp以及分子联通性指数1x与气相色谱保留行为的关系。
The location of e-lgP curve with similar initiatory condition was different for different matric suction.
由于吸力的不同，初始条件相似的土样其e-lgP曲线的位置不同。
First of all, we use optical simulation software to build a complete printing LGP and a diffusion LGP module, than optimize the tradition one to be a comparison module to the diffusion one.
故利用ASAP光学模拟软体分别建构出一完整的网点式导光板模型及扩散型导光板模型，首先我们先模拟出传统导光板之光学表现，将网点式导光板模拟出最佳的光学表现，作为之后与扩散型导光板模拟结果之对照比较。
Specifically, include the following five sections: (1) The shaping and homogenization of laser beam and importing the beam into LGP to producing a uniform light-emitting surface are key contents of laser LCD flat panel display.
具体包括以下研究内容：（1）激光光束整形匀光并导入导光板形成均匀发光的面光源，这是激光液晶平板显示的关键与重点内容之一。
Stress Corrosion Cracks and Preventive Measures for High Strength LGP Spherical Tank
高强钢LPG球罐的应力腐蚀开裂及预防
The results indicated that the logarithmic pressure and temperature of natural gas hydrate formation were correlated by a linear equation, and the slope at the temperatures of-11 ℃ to-1.8 ℃ was different from that at the temperature of-1.8 ℃ to 20 ℃ for the salt solution system.
实验结果表明压力的对数lgP与温度t呈线性关系，在-11~-1.8℃和-1.8~20℃范围其斜率不同。
In China, the transport of LGP mainly depends on the tank trailer.
在我国，液化气体的运输主要依赖公路罐体挂车运输为主。
First, producing 2D dot files by software, such as Pattern Editor, AutoCAD and so on. Second, making dots on the module by Laser engraver machines. At last, obtaining dual-emitting LGP samples by injection molding.
通过PatternEditor、AutoCAD等软件制作了二维网点文件，利用激光雕刻机对模仁进行网点加工，最后通过注塑成型的方法制作了双出射导光板样品。