然而在产品设计尤其是复杂产品设计过程中，耦合设计经常会不可避免地出现。
However, product design usually involves coupled design, especially for the design of complex products.
由于双语指示牌的设置牵涉到的不仅仅是交通系统，因此不可避免地出现了一些问题。
Establishment of bilingual traffic signs is mainly needed in the transportation system and that inevitably has caused some problems.
第一部分是一个宝贵的常见问题目录，但是模式的实现不可避免地出现了对某一特定语言的偏向。
The first part is valuable as a catalog of generic issues, but the implementations of the patterns necessarily show a bias toward a particular language.
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