Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
Remember?
记得吗？
I was listening to the radio.
我正在听收音机。
but of course I cannot do so because I am a prisoner of the present-day world,
不过我是做不到的，因为我和你们大家一样，