2026年度「材料強度学」授業日：7/8（水）1限　第９回  破壊じん性とその試験法

Round-13 hunt: picked; source: named-course long-video search; channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier B passed; strict per-title check + final strict pass; oEmbed verified.

A 40-minute video from 白木尚人: “2026年度「材料強度学」授業日：7/8（水）1限　第９回  破壊じん性とその試験法”.

Video by 白木尚人, played through YouTube's embedded player.