As the design constraints, this software does not apply clamshell phones.

由于设计所限, 此软件不适用翻盖式手机.

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All too often design constraints limit links to just three or four words each.

所有那些在连接文字数量上做了强制限制的,会发生什么?

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They show design constraints, but they are not design specifications in every detail.

它们描述了设计约束, 但是它们不是面面俱到的设计规约.

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