I think it is useful to think of four sources of descriptive metadata in libraries.
我觉得把图书馆中的描述性元数据分为四类对于我们不无裨益。
The paper analyzes four sources of the bullwhip effect: demand signal processing, rational game, order batching, and price variations.
对牛鞭效应的成因，从需求信号处理、订单批量、价格波动、短缺博弈四个方面进行了分析。
Songjiang County, Lishui City, four sources to the Dragon Hall East, west Branch (pit), west Village in the west side of the tributaries, so named.
丽水市松阳县四都源至龙殿分东、西二支流(坑)，西坑村在西边的支流边上，故以此命名。
You could have one mapping model for two sources, three mapping models for three sources, six mapping models for four sources — all counting just one direction of models.
你可以使两个资源拥有一个映射模型，三个资源拥有三个映射模型，四个资源拥有六个映射模型——这些都随模型的变化而变化。
The money to plug a hole in the Irish banks' balance-sheets can come only from four sources: central-bank reserves, printing money, taxpayer funds and foreign loans.
用于弥补爱尔兰银行资产负债表窟窿的资金只能来源于四个方面：央行准备金，印发新钞，税款以及外国贷款。
Results the blood of the hypothenar district of 10 specimens and 7 patients provides four sources, and the foot artery contains a special branch enter the little finger exhibition muscle.
结果显微解剖学观察废弃手10例标本及患者7例标本小鱼际区域血供有4个来源，其中尺动脉有一特殊分支进入小指展肌。
The foreboding has two general sources and four specific causes.
这种对未来不详得预感有两个普遍的来源和四项具体的原因。
Polish, Russian, Belarusian and Ukrainian sources state that four such camps existed.
波兰、俄国、白俄罗斯和乌克兰的史料证明存在着四个这样的营地。
Three wrappers provide access to four data sources (including the XML file that contains the Web order).
三个包装器提供了对四种数据源的访问(包括包含Web订单的XML文件)。
I eat about three or four times as many plant foods (like green leafy vegetables) as before; probably 50 percent or more of my calories come from nonanimal sources.
我现在吃的植物类食品比以前多两到三倍（比如绿色叶子蔬菜）；我大约有50％甚至更多的卡路里摄入都来自非动物类食品。
You create a federated system by first installing the federated engine, then configuring it to communicate with the data sources. There are four basic federated objects.
首先通过安装联邦引擎来创建一个联邦系统，然后配置该联邦系统，以便与数据源通信。
When the integrated data sources expand to four, six sets of mappings need to be performed.
当集成的数据源扩展到4个时，需要进行6组映射。
We need to define four wrappers to access four different types of data sources.
我们需要定义4个包装器来访问4种不同类型的数据源。
I put forward four profit sources considering main profit source of enterprises.
主要从利润来源方面对企业进行全面考虑，提出四个利润来源。
Three wrappers provide access to four data sources that are cataloged as servers (including the XML file that contains the Web order).
三个包装器(wrapper)提供对四个被归类为服务器(server)的数据源(包括包含Web订单的XML文件)的访问。
The Universal dream patterns are bent and molded by local forces in your life. Your every dream is influenced by four broad sources of influence.
普遍梦境的模式也因你生活中各种力量的作用而变化。
Overall, mothers and fathers with four children of any gender were more likely to find family life a struggle, with mornings, mealtimes and bedtimes the most common sources of conflict.
总体而言，有四个孩子(无论男女)的父母更有可能为家庭庭生活烦恼，清晨、用餐时间和睡觉时间是最常发生冲突的时段。
The four major sources of venture IDEA, which are an four effective ways to broaden their vision.
四大创业idea的来源，也就是四大开阔眼界的有效方法。
Simulation results demonstrate: the chaotic modulation signals generated from the four kinds of chaotic sources can all reduce the peak level of the input current and the output voltage spectrums.
仿真结果表明：四种混沌源调制生成的混沌开关调制信号，均能够降低电源的输入电流及输出电压的频谱峰值。
There are four kinds of error sources for logging data: method error, environment error, instrument error and error caused by negligence of operators.
测井数据误差来源归纳起来有四种：方法误差、环境误差、装置误差和人为误差。
The block diagrams which represent the incremental models of resistors, capacitors, inductors and four types of nonlinear controlled sources are derived.
文中推导出表征电阻器，电容器、电感器和四种非线性受控源增量模型的方框图。
According to the sources, Information systems engineering methods can be divided into four types.
信息系统工程方法按其来源的不同可分为四种类型。
Based on historical data of the coast line changes over the years, siltation process of the Zhejiang coast is discussed and four silt sources are clarified.
本文根据历年来岸线变迁与海塘兴建的资料，论述了浙江海岸的淤涨规律，并进一步阐明了海岸淤涨的四种泥沙来源。
A new multi pass optic system is constructed in which two sources and four detectors are used.
对四种设计方案进行了比较，从而提出了双光源四探测器的新型多光路光学系统设计方案。
Method: Selecting the optimum carbon sources, nitrogen sources and inorganic salt to get the optimum liquid medium recipe by the orthogonal test in three factors and four levers;
方法：采用深层培养方法，筛选出较优的碳源、氮源、无机盐，设计三因素四水平的正交试验，筛选大杯伞的最适培养基；
Method: Selecting the optimum carbon sources, nitrogen sources and inorganic salt to get the optimum liquid medium recipe by the orthogonal test in three factors and four levers;
方法：采用深层培养方法，筛选出较优的碳源、氮源、无机盐，设计三因素四水平的正交试验，筛选大杯伞的最适培养基；
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