三芯电力电缆的英文：
three-core power cable
num. 三，三个
three coat,three bake
“三涂三烘” 工艺(反复涂三道漆，烘干三次的施工方法)
fiveteen contains five and three.
15可被5和3除尽。
To draw three feet of water
吃水三尺
n. 核心；精髓；果心；地核
v. 挖去…的果心
inner core tube
内倒望远镜
magnetic core switch
磁铁心开关
core ,for electric transformers
线圈心,变压器用
n. 力量；动力；能力；权力；大国；机能；体力
v. 给…提供动力
smoothing power
修匀功效
These drugs are powerful.
这些药物很有效。
Applications of Power Electronics Technique in Power System
电力电子技术在电力系统中的应用