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
They gave a banquet in honor of the delegation.
他们设宴招待代表团。
Straws show which way the wind blows.
草动示风向。
She was in the city to visit her daughter.
她住在农村。