Z在英国英语中读如Zed，在美国英语中则读如zee，但在古英语中则读作izzard。Z源自希腊语字母Z（zeta），而希腊语的Z又是借自腓尼基语。We reviewed the literature on DRM units within the audio industry and blockchain-based DRM units in parallel (as stated in portion “Rigor Cycle”) to discover critical