本手册为一本中药类实用综合性工具书。全书选编500余种临床常用中药，简要介绍了所选入中药的药理功效，对其中所含代表性活性成分的药理活性、各活性成分的提取分离方法和检测方法进行了较详细介绍，书中信息翔实可靠、简便实用、可操作性强，可供中医药工作者、从事有关研究的科技工作者查询，亦可作为有关大专院校师生的重要参考书。

本书介绍了智能手机快速入门的四个步骤：第一步，每一节或每一个专题的开始，有一段对本节内容的介绍和课程导入。语言幽默且不乏知识性，带入感强。第二步，环环相扣、图例清晰，手把手学手机，再也不用担心学不会了。第三步，直观总结学习要点，一点就透。第四步，每一节内容之后有一段针对本节内容的科技小妙招，是对正文内容的补充，也是对本节知识的一个拓展。

《单元错齿式铸钢桥梁伸缩装置（DB41\\T1345-2016）/河南省地方标准》按照GB/T1.1-2009给出的规则起草。本标准由河南省公路学会提出并归口。本标准规定了单元错齿式铸钢桥梁伸缩装置的术语和定义、产品结构及代号、技术要求、试验方法、检验规则、标志、包装、贮存和运输。本标准适用于伸缩量为0mm～240mm的公路、市政单元错齿式铸钢桥梁伸缩装置（以下简称伸缩装置）。

由中国科学社主办的《科学》杂志是我国延续时间*长、社会影响*为深远的自然科学杂志。从1915年至1960年，《科学》均为月刊，共出版35卷，总发行量逾76万册。鉴于其在中国现代科学史上的崇高地位，在中国科学社成立与《科学》创刊逾100周年之际，完整整理影印出版《科学》杂志，既是对中国科学社这一中国现代科学事业的先驱的隆重纪念，也是对这份中国现代科学史上的重要历史文献遗产的继承与发扬。本书为《科学》丛书的**册，单独以导论、总目形式出版，方便读者查阅。

The copper and copper alloy stranded wires mentioned in this standard only refers to some stranded wire products in field of electric wires and cables used for electrified railways.They have many specifications and stranding types.According to their different functions and positions installed on overhead contact line system （OCS）for electrified railways，these stranded wires are called in different ways，including catenary，auxiliary catenary，head span wire，upper cross span wire，lower cross span wire，mid anchor wire，stitch wire and dropper.This standard focuses on the requirements on technical parameters and technical performance.For the convenience of description and to be in accordance with the names of products in electric wire and cable industry，the term of stranded wires is adopted in this standard instead of the railway terms mentioned above.The flexible copper stranded wires used for electric connection in OCS are not included in this standard for being regarded as a general product.

The guide is developed to unify technical requirements for the construction of green corridor for railways，for the purpose of stabilizing slopes，conserving water and soil，improving environment，preventing disasters and landscaping.The guide is applicable to the design，construction，quality inspection and acceptance of green corridor for new railway project and railway reconstruction project.

This standard specifies the technical requirements，inspection，acceptance，transport and storage of electric locomotive car bodies.This standard is applicable to the design，production and acceptance of newly constructed electric locomotive car body with standard gauge of 1 435 mm （hereinafter referred to as car body）.For car bodies of other types，this standard can be followed. This standard is also applicable to car bodies of other types.

This part specifies the system services，system composition，networking modes，system functions，technical requirements，marks，Packaging，transportation and storage related to railway dispatch communication system.This part is applicable to the design，manufacture and acceptance of railway dispatch communication system for the sections with or without GSM-R in both new railway projects and reconstruction projects.

《系统工程手册：系统生命周期流程和活动指南（原书第4版中英对照版）》中，建模和仿真已被定义为跨系统生命周期流程的系统工程共性方法，用以实现对系统概念的完整性表达，支持系统需求、设计、分析、验证与确认活动的开展，涉及建模目的、标准、范围、类型、语言等内容。建模与仿真都是用抽象在应对具体，再用形式描述物理，这是建模与仿真的核心。许多模型和仿真实践已被正规化为SE流程，且众多建模语言已成为国际标准，如SysML、UML等，在“基于模型的”背景环境下，支持SE学科的有关方法论、流程、方法和工具已日趋成熟，且在航空航天／防务领域已被证明。

This code is developed to enhance the risk management of railway construction projects，improve the technical level of the risk management and unify the risk management technical requirements.This code is applicable to the risk management of new railway construction projects.