Polysulphide
n. [化]多硫化物
🗣️ 情景例句
That doesn't make sense.
那没有意义。
A good friend is my nearest relation.
良友如近亲。
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。