Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
Does it have anything to do with you and Harry?
是关于你和Harry的事吗？
Is this your pen? I found it under the desk.
这是你的笔吗？我在桌下捡的。
Finally, turn off the lights and lock the door.
最后，关上灯，锁好门。