EMS公司已开始设计初样单元，并准备在2008年底进行系统定型需求评审。

EMS has begun design of early prototype units and is preparing for the formal system requirements review later this year.

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不少兵器在设计和生产定型时都需要进行成套的尺寸链计算，以便对零件的可装配性进行检验，保证系统的精度要求。

Many arms demand dimensional chain calculation in process of design and finalize the design in order to test the assembly characters of the parts and assure the system precision requirement.

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因此，合理设计定型模冷却系统是定型模设计的重要环节。

So the design of the cooling system in calibrator is very important.

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