元宝兑换人民币的游戏

适用范围：This specification covers metal foils supported by carrier films and unsupported foils suitable for subsequent use in printed boards. Unless otherwise agreed upon between user and supplier (AABUS), metal foils shall be considered acceptable, so long as the requirements in this specification are met. Purpose This specification addresses the requirements for procurement of metal foils used only in printed wiring applications.

适用范围：Statement of Scope This specification covers qualification andperformance of in-process and finished printed boards (PBs)containing embedded passive circuitry with distributive capacitiveplanes, capacitive or resistive components. Purpose The requirements contained herein areintended to reflect electrical, mechanical, and environmentalproperties unique to embedded passives. It is not intended tospecify overall requirements for the PB which are alreadydocumented in the following sectional performance specifications:IPC-6012 (rigid), IPC-6013 (flex/ rigid-flex), IPC-6015 (MCM-L) orIPC-6018 (microwave).