Under temperature cycling (thermomechanical fatigue) conditions, this Pb-rich phase tends to coarsen and eventually leads to solder joint cracking.是什么意思_Under temperature cycling (thermomechanical fatigue) conditions, this Pb-rich phase tends to coarsen and eventually leads to solder joint cracking.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句