这个设计是开放式的。

The design is open plan.

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它包括了终端机/服务器结构，使用图形用户界面和申请开放系统设计。

It will include client/sever structure, using graphic user interface and applying for opening system design.

youdao

因为HD 555和HD 595都设计为“开放”式耳机，使用泡沫阻挡通风孔会微小的改变频率响应。

Since both the HD 555 and HD 595 are designed to be "open" headphones, reducing the vent with this foam would alter the frequency response slightly.

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