rigid polyvinyl chloride pipe fittings for water works service

1、

application of polyvinyl chloride pipe on farm water supply engineering of rolling region

聚氯乙烯管材在丘陵区人饮工程中的应用

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2、

net importer of energy supply

纯能源输入国

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3、

protection is classified into link protection, segment protection and path protection.

保护技术可以典型地分为三类：链路保护、分段保护和通道保护。

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4、

improved methods of moving object detection are classified into three categories.

本文将运动目标检测的改进方式分为三类。

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5、

the main causes of deforestation can be classified into three categories.

森林砍伐的主要原因可以分为三类。

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6、

molecules that bind to these proteins come in three flavors.

与这些蛋白质结合的分子可分为三类。

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7、

according to altenberg ( 1998), chunks are classified into three categories: full clauses, clause constituents and incomplete phrases and the function of these chunks also are discussed in this thesis.

然后参照Altenberg（1998）的分类标准，将词块分为三类：完整分句，分句成分和不完全词组，并分析了各种词块的功能。

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8、

the epicentre data model is classified into three types: activity data model, object data model and property data model. among these data models, the object data model is the kernel, the object data models act as kernel entity and constraint entity.

认为Epicentre数据模型可分为三类模型：活动模型、对象模型和特性模型，其中对象模型是核心模型，在进行数据映射时，其主要充当核心实体及约束实体。

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9、

three nerve cells prevail in competitive layer at last, that is to say, the traveling states of the machine are divided in three sorts. lvq is an effective learning algorithm that trains the competitive layer under supervision.

结果竞争层有三个神经元获胜，即该机械的运行状态被分为三类。LVQ算法是在有教师状态下对竞争层进行训练的一种学习算法。

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10、

according to their different effect on the negative electrical charge density of filter cake fines, water soluble fluid loss additives are divided into three kinds: ( 1) electrical charge density is reduced, such as polyethylene glycol and pregelatinized starch;

根据降滤失剂对滤饼粘土颗粒淌度的影响将降滤失剂作用机理分为三类，（1）降滤失剂使泥饼负电荷密度降低，如PEO、预胶化玉米淀粉等；

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11、

detailed analysis of the rht model was made and parameters were divided into three categories. a set of methods to determine the values of the parameters of model was summarized.

通过对RHT模型进行详细分析，将众多参数分为三类，得出一套方法确定水泥稳定碎石模型各个参数的取值。

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12、

the existing acoustic source localization techniques are typically based on three types of sensor measurement from physical variables: time delay of arrival, direction of arrival and received sensor signal strength or energy.

根据传感器探测物理量的不同，经典声目标定位方法主要分为三类：基于波达方向定位（DOA），基于时延定位（TDOA）和基于信号能量定位（RSSI）。

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13、

the model indicates that three types of parameters affect the adcp discharge measurement random uncertainty: adcp system parameters, river hydraulic parameters and field operation parameters.

该模型表明，影响ADCP流量测验随机不确定度的参数可以分为三类：即ADCP系统性能参数、河流水力参数、测验作业参数。

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14、

in research field, lotka-volterra systems are often divided into three categories, namely: cooperative type ( or competitive type), conservative type and dissipative type.

在研究过程中，往往将Lotka-Volterra系统分为三类，分别是：合作型（或竞争型）、保守型、耗散型。

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15、

then, those blocks are classified into 3 classes by som. finally, secret information is embedded into the wavelet coefficients with steganography based on modulus.

然后，利用SOM将小块分为三类，采用模算子隐写将秘密信息嵌入到小波系数中。

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16、

rup recommends three categories: a vision document, use-case documents, and a supplementary specification document describing requirements that do not warrant use cases.

RUP推荐分为三类文档：一个前景文档，多个用例文档和一个补充规约文档，最后一种描述了不能根据用例描述的需求。

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17、

computer simulation of motorcycle is an important component of cad system. the models of the said simulation are generally divided into: simplified model, detailed model and perfect model.

摩托车性能的计算机模拟是CAD系统中一个十分重要的基本组成部分，摩托车性能的计算机模拟模型大致可分为三类：简化的模型、详尽的模型及完善的模型。

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18、

saas users are broadly divided into three groups: non-technical users, application developers, and website maintainers.

SaaS用户大体分为三类：非技术用户、应用程序开发人员和网站维护人员。

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19、

the current projects of the odf toolkit community can be categorized into three classes

ODF Toolkit社区当前的项目可以分为三类

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20、

firstly, this paper defines the meaning of liquidity value theoretically, and then summarizes its measuring methods.

本文首先从理论上对流动性价值进行界定，然后对流动性价值的研究方法进行梳理，结果发现，常用的研究方法大致分为三类，即流通受限股票方法、IPO方法和其他方法；

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