Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
Lots of interesting information about our family.
很多我们家有趣的东西呢
The lumberjack sweats as he cuts down a tree.
伐木工人边砍树边擦汗。
Let's have a beer or something.
咱们喝点啤酒什么的。