Porefilling
填孔
🗣️ 情景例句
I think I am very good at planning.
我认为我最擅长计划。
We are sure to defeat them.
我们一定会打败他们。
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理过程中，常常使用氧气切割和焊接金属板或金属管。