Technical drawings - General principles of presentation - Part 1 : introduction and index.
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The article gives a detailed introduction on the physical properties of the baryte heavy concrete the design of structure and the technical economy index of the weighing blocks.
本文对重晶石重混凝土的物理力学性能，加重块结构设计和技术经济指标做了详细介绍。
The second chapter gives a general introduction to its function, the major index, the total frameworks and the composition, of all hardware modules.
第二章对战术数据链系统的功能、主要战术指标以及系统的总体结构框图、各硬件模块的组成作了概括性的介绍；
The concept of bearing capacity of geological environment is defined in this paper, with the introduction of its assessment index system and an example showing the assessing method.
本文提出煤矿区地质环境承载能力的概念及其评价指标体系，并举例介绍地质环境承载能力的评价方法。
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