The biggest difficulty is chemicaldeposition of copper of PTFE activation pretreatment, is also the most crucial step.
其最大的难点是化学沉铜前的聚四氟乙烯活化前处理，也是最为关键的一步。
2
Quick surface metallization of titania powder was carried out by electroless chemicaldeposition of nickel.
采用镍的无电子化学沉积方法研究了纳米二氧化钛粉末表面的快速金属化。
3
Cerium conversion films were prepared on anodized aluminum via chemicaldeposition and electrodeposition respectively, and the mechanisms of formation of the cerium conversion films were investigated.