为此，规范创造了一个开放源码的手势识别引擎和定义的手势api，它提供了让应用程序对用户手势作出响应的接口。

Toward that end, Canonical has created an open source gesture recognition engine and defined a gesture API that provides a way for applications to respond to users' gestures.

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针对Iphone的TripIt是启用TripIt应用编程接口(API)创建的，其使开发者可以用TripIt的开放式线路平台为基础创建。

TripIt for iPhone was created using the TripIt API (Application Programming Interface) that enables developers to build on TripIt's open itinerary platform.

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通过合理的设计数据库访问接口，可以增强应用程序的通用性、扩展性和开放性。

By designing a reasonable interface, we can make the system general, extent and open.

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