The dynamic balancing machine system is composed of two main systems: the drive system and the swing system.

动平衡机系统主要由两大系统组成：驱动系统和摆架系统。

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The two interfaces in orange define the main events in the system.

橙色的两个接口定义系统中的主要事件。

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The two main advantages of using a reverse proxy server are system security and performance.

使用反向代理服务器的两个主要优点体现在系统安全性和性能上。

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That's what the system is for,". North Korea experts suggest two main motivations for recent provocations.

VOA: standard.2009.05.26

Conservatives usually argue two main types of imperfections in the system.

FORBES: Jude Wanniski's Electoral Model Points To An Obama Landslide

Today the railway system has shrunk, the two main airlines have merged and a series of trade deals, culminating in the North American Free-Trade Agreement, have, since 1988, increased trade with the United States to some 87% of Canada's exports.

ECONOMIST: Canada

Two main initiatives are National Academic Research and Collaborations Information System ( NARCIS): the national portal for those who are in search of information about researchers and their work and Data Archiving and Networked Services ( DANS) to provide access to datasets by developing data infrastructures in organisations.

UNESCO: Global Open Access Portal