Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
Well, Robbie was eight pounds two ounces,
嗯 ，Robbie生下来八磅二盎司，
There'll be time for questions at the end.
最后会有时间发问的。
Hi, Jim. Nice to meet you.
你好，吉姆。很高兴见到你。