Because Ruby can be powerfully extended, the Rails framework is able to turn it into a sort of special-purpose language for building web applications.
正因为Ruby可以被强力扩展，Rails框架才可以将他转换成像是建造网站应用程序的专用语言。
ARGO floats is a kind of measuring appliance for the special purpose of building the global ocean observation net.
ARGO浮标是用于建立全球海洋观测网的一种专用测量设备。
Combined with waterborne trade it introduces a ship used for special purpose-dredger, especially in the related designing and building.
结合水运行业生产，介绍了特种船舶——挖泥船的设计与建造。
Combined with waterborne trade it introduces a ship used for special purpose-dredger, especially in the related designing and building.
结合水运行业生产，介绍了特种船舶——挖泥船的设计与建造。
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