Series 709 features a modular design concept which facilitates complete maintenance and assembly by retaining the spring load.

系列709采用模块设计概念，弹簧负载的保持有助于全过程的维护和组装。

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In this paper, the software of the system was designed based on modular design concept, and programming language C51 was adopted.

本文在软件设计方面采用模块式的设计理念，采用C51语言进行编程。

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The application of modularization concept in design and manufacture of metro cars is described, and the design of each modular constructing the car is expounded systematically.

介绍了模块化概念在地铁车辆设计和制造中的应用，对构成车辆的各个模块设计进行了系统阐述。

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The company said the modular build concept, instead of using a bespoke design for each centre, substantially reduced capital expenditure and build time.

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