有用户询问捷配自己PCB板焊接爆板现象,今天我们就来谈一谈。一般我们称呼PCB及电子零件的【爆米花效应 (Popcorn Effect)】是指PCB或电子零件 (通常为封装IC)在进入焊接的高温时产生气泡或爆板的现象。
今日(9日)早上7时25分,牛头角上邨常荣楼一名母亲报案,指其9岁儿子在家中情绪激动,靠近窗边企图跳楼。警方接报赶到,发现男童情绪已经平复并且安全,经调查后相信当时男童正准备上学,他因「扭计」买玩具但被母亲拒绝,因而大发脾气,并无寻死意图。
Learning the children’s idea, Mrs. Meredith was so 1.overjoyed (高兴的) that she smiled brightly. Then, the children got down to preparing popcorn 2. cheerfully (高兴地). With a basket of popcorn, they left ...