The string refers to a high-definition digital release of an anime episode, likely from a Chinese-based "raw" group. Breakdown of the Technical Specs
: The release group. "NC" typically stands for "No Cleanup" or refers to a specific group known for providing untouched "raw" versions of anime episodes directly from broadcast or streaming sources. 02 : This identifies the release as Episode 2 of the series. [NC-Raws] - 02 (B-Global 3840x2160 HEVC AAC MKV...
: A versatile file container that can hold multiple audio tracks, subtitle files, and chapters in a single file. Content Context The string refers to a high-definition digital release
Since this is a "Raw" release, it usually unless they were "hard-coded" (burned into the video) by the original streaming platform (Bilibili Global). Users typically download these for: [NC-Raws] - 02 (B-Global 3840x2160 HEVC AAC MKV...