substrate composition的用法和樣例：
例句
- To create the channels, the researchers patterned cell-adhesive and cell-repellant chemical compounds onto a substrate.
為了建造通道，研究者將促進細胞粘附和細胞排斥的化合物分別塗布在培養基上。 - This is in turns heaps in the processing , joins the surplus accessories in the substrate.
這是在翻堆過程中，往培養基里加入剩餘的輔料。
