Weld preheating
[化] 焊前预热
🧩 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;
[计] 预热的
🗣️ 情景例句
I see. Then you don't have any collateral.
我明白了。那么你们没有任何担保物。
I wrote to him last Friday.
我上个星期五写信给他。
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。