把下列句子翻译成汉语,尤其注意句中专业术语的准确词义。 1 、 The sampling theorem shows that all values of a signal can be determined by sampling the signal at a rate equal to at least twice the bandwidth. 2 、 Most DSPs are based on the so-called Harvard architecture, where the data path (including the bus and memory unit) is made distinct from the program path, allowing an instruction search to be performed simultaneously with another instruction execution and other tasks.