Dinaphthylmethane
二萘甲烷
🗣️ 情景例句
Two of a trade seldom agree.
同行是冤家。
Is there a police station nearby?
这附近有没有警察局？
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。