请帮忙分析一下句子成分及主干,
问题描述：
请帮忙分析一下句子成分及主干,
A 32-bit unsigned fixed-point number (16.16) that indicates the rate at which the sound samples were obtained.
最好有翻译，
答
A 32-bit unsigned fixed-point number (16.16)这是主语,that引导主语从句解释说明这个number表明了一个速度,速度（rate）后接定语从句,主语后应该是were obtained.