SD卡技术规范，英文原版，希望有助于有关SD卡的设计开发。-SD Card technical norms, the English original, hoping to contribute to the SD Card design and development.

IEEE Std 738-2006 Front Cover Introduction Notice to users Participants CONTENTS IEEE Standard for Calculating the Current-Temperature of Bare Overhead Conductors 1. Overview 1.1 Scope 1.2 Disclaimer 2. Definitions 3. Temperature calculatio