free silver造句
1. Development process and status guo of cyanide free silver plating technology were introduced.
2. The process of cyanide free silver pulse electroplating is investigated in 5, 5 - dimethyl hydantoin ( DMH ) bath.
3. McKinley convinced the people that the Free Silver Movement was a bad idea.
4. Only two million points for a free silver fondue set!
5. A cyanide free silver electroplating process with 5, 5 - dimethyl hydantoin as coordination agent is studied.
6. Basic principle and technology of the cyanide free silver brush plating on copper substrates are researched.
7. The lead free silver conducting pastes were prepared by using silver powder, lead free low-melting glass and terpineol ethyl cellulose solution.
8. A method is proposed to determine free native silver and free silver sulphide in lead - zinc concentrate.
9. Ten typical formulas and some kinds of additives used for cyanide - free silver plating were introduced.