Plasma(arc)cutting
[化] 等离子切割; 等离子弧切割
🗣️ 情景例句
It's our family tree.
这是我们的家谱。
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。