查询词典 retrieval

Based on the retrieval and analysis of the Bibliographer, the methods of water-disitillation extraction, sametime-disitillation extraction and supercritical CO_2 extraction for the extraction of three typical kinds of natural substances in Zhejiang Province were evaluated exp...

论文在文献阅译和工艺原理分析的基础上，以浙江比较有特色的三种天然物质为研究对象，实验评估了水蒸气蒸馏、同时蒸馏萃取和CO_2超临界萃取等方法，研究了金柑挥发油、白玉兰花挥发油和香菇精等三种天然香精的不同提取工艺，重点研究了CO_2超临界萃取工艺与成份分析方法。

Based on the retrieval and analysis of the Bibliographer, the methods of water-disitillation extraction, sametime-disitillation extraction and supercritical CO_2 extraction for the extraction of three typical kinds of natural substances in Zhejiang Province were evaluated experimentally.

论文在文献阅译和工艺原理分析的基础上，以浙江比较有特色的三种天然物质为研究对象，实验评估了水蒸气蒸馏、同时蒸馏萃取和CO_2超临界萃取等方法，研究了金柑挥发油、白玉兰花挥发油和香菇精等三种天然香精的不同提取工艺，重点研究了CO_2超临界萃取工艺与成份分析方法。

The online bibliographic retrieval service is a main service which should be provided by libraries on network environment.

联机书目检索服务是在网络环境下图书馆应当向读者提供的一个重要服务。

The online bibliographic retrieval service OBRS is a main service which should be provided by libraries on network environment.

联机书目检索服务是在网络环境下图书馆应当向读者提供的重要服务。

It is used by the generated web service to perform bidirectional storage and retrieval operations with the DAL.

它是利用生成的Web服务执行与达尔双向存储和检索操作。

Owing to the anisotropic and the biharmonic nature of microwave radar backscatter on spaceborne scatterometer, moreover, scatter model function nonlinear and the existence of various noise sources in the measurements in addition to the model function, the retrieval wind results consist of as many as four wind directions.

摘 要 由于卫星散射计探视雷达回波的各向异性的双调和性质，同时由于散射物理模型函数的非线性及信号中存在噪声，使得常规点方式风场反演中风向有多至4个解的多解存在。

It was found that both encoding and retrieval of spatial information activated posterior parietal areas bilaterally.

我们发现编码和检索空间信息都会激活后颅顶部区。

The three classic models in information retrieval are called Boolean, vector, and probabilistic.

信息检索的三个经典模型分别是：布尔模型、向量模型和概率模型。

In providing document retrieval services. Then, we give a design of document collection based on DBMS to support both Boolean Model and Vector Space Model.

联机文档检索服务是当今和未来的图书馆用户对图书馆信息服务所提出的一种自然而紧迫的要求。

This passage analyzes the advantage and disadvantage of the Boolean Model and the Vector Space Model in information retrieval model: the Boolean Model is simple to realize, but its classification ability is limited and the logic expression formula is strict.

本文分析了信息检索中传统文档特征表示的布尔逻辑模型和向量空间模型的优缺点：布尔逻辑模型虽机制简单、容易实现，但是它的分类能力有限且逻辑表达式过于严格；向量空间模型将文档映射到连续域向量空间，为进一步的权重计算等多元处理提供了基础，但容易忽略文档集合中各个文档的一些共有特征。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？