Weld polarity
[电] 熔接极性
🧩 词语组成解析
weld
[wɛld]
vt.& vi. 焊接;使紧密结合;
n. 焊接点;黄色植物染料;
🗣️ 情景例句
how would you do it?
你怎么说？
She was so happy that she shed tears of delight.
她因为太幸福了，所以喜极而泣。
Sure enough, Rastus arrived punctually at seven o'clock that evening.
果然，当天晚上7点正，拉斯特斯准时回来了。