In object-oriented programming, a message is the way that one program object requests an action from another object.

在面向对象编程中，消息是一个程序对象要求另一个对象完成一个动作的方法。

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Extended program Object model (which is called EPOM) is a abstract model used to depict the syntax structure of a program.

可扩展程序对象模型(EPOM)是用来具体刻画程序语法结构的一种抽象模型。

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EPOM (extended program object model) is an abstract model used to characterize advanced language program. We can distill all kinds of information of program using EPOM.

可扩展程序对象模型是一种用来刻画高级语言程序的抽象模型，利用该模型可以很方便地抽取出程序中各式各样的信息。

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"No Earth impact is possible, " according to Don Yeomans, manager of the Near-Earth Object Program Office at NASA's Jet Propulsion Laboratory.

CNN: Russian meteor shower causes blast; hundreds injured

"The meteor was probably about the size of an SUV, " said Donald Yeomans, manager of NASA's Near-Earth Object Program Office at the laboratory, in Pasadena, Calif.

WSJ: Meteor Creates a Show, No Apparent Damage

"We would expect an event of this magnitude to occur once every 100 years, " said Paul Chodas of NASA's Near-Earth Object Program Office, in a statement.

WSJ: Russia Meteor Was Largest in More Than a Century