The instruments are easy in material choosing, simple in making and low in cost.

该装置具有取材方便，制作简单，造价低等优点。

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Based on design and material choosing concept, it presents relative data, such as main points in material choosing and permissible water speed for water with different quality.

从设计、材观点出发介绍不同水质的选材要领，允许水速相关数据。

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Through choosing the blanking clearance of material in reasonable, just by one die blanking the different thickness of very thin gaskets, the die structure was simple and practical.

通过对材料冲裁间隙的合理选取，只用一副冲模就实现了对厚度不同的超薄垫圈的生产，且模具结构简单、实用。

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Forbes sat down with Damaschke in his office on the DreamWorks campus to talk about choosing the right material, getting the most out of each franchise and how a company mandate that all films be made in 3-D affects his choices.

FORBES: Can 'Megamind' Continue DreamWorks' Run of Mega-Hits?