Permaphase
带硅氧烷聚合物层的色谱固定相
🗣️ 情景例句
How do you get to work everyday?
你每天怎样去上班？
Quality is better than quantity.
质重于量。
She gave her luggage to a porter and showed him her ticket.
她把行李交给搬运工并给他看了车票。