ppr

The Application of PPR Tubular Products in the Water-supply Engineering

聚丙烯（PPR）管材在给水工程中的应用

Virtual Maintenance Technology for Reactor System Based on PPR Technology

基于PPR技术的反应堆系统虚拟维修技术

The Effect of Forward Current Density of PPR on Throwing Power

脉冲电镀的正向电流密度对深镀能力的影响

Evolution Algorithm Based Forecasting Model for Lake Eutrophication Using PPR

基于进化算法的湖泊富营养化投影寻踪回归预测模型

Research on the basic rolling parameters of composite metal band made by PPR method

PPR法制备表面复合金属板带轧制基本参数研究

Application of PPR Method in Long Period Forecast of Spring Drought in Xinjiang

PP回归在新疆春旱长期预报工作中的应用

Mechanical Problems in Metallic Composites Formed by PPR Method

粉镀法制备金属复合材料中的力学问题

The results also prove that PPR is a practicable method for the similar studies .

结果也表明，PPR模型适合于这类研究。

Study on Industrial Applications of Fluorin Polymer Processing Additives in PPR

氟聚合物加工助剂在管材料中的工业应用

I don 't believe PPR is required since these are engineering parts .

我不相信PPR是必需的，因为这些工程的部分。

Analysis and optimization simulation of PPR factors contribution ratio of suspension girder dumping ratio

悬栅消能率的PPR因子贡献率分析及优化仿真

HM and PPR were used to develop linear and nonlinear models , respectively .

用HM和PPR方法分别建立了线性和非线性模型。

The model includes four sub-models : Product Model , Process Model , Resource Model and PPR Relationship Model .

该模型包含四个子模型，即产品模型、过程模型、资源模型和产品-过程-资源相互关联模型，采用统一建模语言建立了相应的语义模型，并将该模型应用于某型飞机机翼数字化定义。

Dual Fault - Tolerance Server , based on high performance PC , has high PPR and reliability .

基于高性能PC机的双机容错服务器具备极高性能价格比和可靠性，具备广泛的应用前景。

PPR is a linear polynomial representation and an orthogonal transform .

PPR是一类基于线性多项式回归的正交变换。

PPR Method for Sources Apportionment of Atmospheric Particulates in Chengdu City

成都市大气颗粒物源解析的PPR法

The Study on Establishing Growth Patterns of Grassland Yields and Analysis of its Ecological Formations Using New PPR

利用PPR新方法建立草地产量增长模型及生态成因机理研究

A Study on the Grassland Forage Yield Forecasting Using Projection Pursuit Regression ( PPR ) Technology

利用投影寻踪回归技术进行草地产量预报的研究

Design and finish static test of 4 continuous beams with external prestress that have different PPR .

设计并完成了四片体外预应力连续梁的静载试验。

Research on PPR speciality for water pipes

给水用PPR管材专用料的研制

Analysis on Damping Ratio of Single Factor and Simulation of Many Factors Optimize Combination with Suspension Girder in PPR

悬栅消能率的投影寻踪回归因子贡献率分析及多因子优化组合仿真

The PPR requires low power , high performance , easy maintenance , and communication with the current tactical radio .

单兵电台要求低功耗、高性能、易维护并能与现有电台互连互通。

The objectives of scientific forecasting forage yields in different grassland types were realized by the PPR technology .

因而研究结果表明利用PPR技术基本实现了科学预报草地产量的目的。

Modification of Low Ethylene Content PPR with Nano-CaCO_3

低乙烯含量PPR的nano-CaCO3改性研究

Study on the Functionalization of PPR and Its Toughening Effect on Recycled PET Flakes

PPR的官能化及其对回收PET瓶片的增韧研究

Modification of various upper and lower water pipes , water and electricity , as well as PPR pipe one-stop service .

改装各种上下水管，水电，以及PPR管等一条龙服务。

A new developing statistical method , PPR ( Projection Pursuit Regression ), is introduced in this paper while a practical example is presented .

本文对一种新兴统计方法&投影寻踪回归（ProjectionPursuitRegression）做了较为详尽的介绍，并提供了一个应用实例。

The effects of the modified nano-meter particles on the heat resistance and mechanical properties of PPR resin were studied systematically .

系统地比较了经改性处理后纳米粒子对PPR树脂耐热性、力学性能的影响。

Exchange Gold PE , PE-RT , PPR pipes and other major technical indicators in the industry leading level .

汇金牌PE、PE-RT、PPR等系列管道的主要技术指标在行业内处于领先水平。

The results from two cases of model prediction in water environment show better prediction effect and are compared with the project pursuit regressive ( PPR ) model .

通过水环境中的两个实例进行了预测应用，结果表明，预测效果较好，并与投影寻踪回归模型（PPR）进行了对比。