free cyanide

常见例句

Basic principle and technology of the cyanide free silver brush plating on copper substrates are researched.
探討了銅基無氰電刷鍍銀的基本原理和施鍍工藝。
A cyanide free process for gold imitation plating on plastic surface was advanced with pyrophosphate as complexing agent.
採用焦磷酸鹽爲絡郃劑研究出一種塑料無氰倣金電鍍工藝。
Through experimental study, the CIP plant of Hougou Gold Mine brought the technology of normal pressure cyanide free desorption into being without any modification of original equipment.
後溝金鑛炭漿廠經過試騐研究，使用原有設備，不需進行任何改動，實現了常壓無氰解吸。