With huge oversupply in some industries, and big rises in raw-materials costs, many manufacturers are having to endure wafer-thin margins.
随着一些工业领域的生产大量过剩，以及原材料成本的骤增，很多生产商都不得不忍受边际收益的大缩水。
2
Select a soluble europium salt solution as the raw material, and deposit the thin film on the single crystal silicon wafer by utilizing a three-electrode electrochemical cell.