Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
You'll never guess what happened the other day!
你永远也猜不到前几天发生什么事了！
I'm expecting promotion to management level.
我指望晋升到经理的职位。
The maximum weight allowance is 60 kilos per traveler, excluding hand luggage.
每个旅客托运的行李最大重量限额是60公斤，手提行李除外。