cyanide-free

基本解釋

A cyanide free process for gold imitation plating on plastic surface was advanced with pyrophosphate as complexing agent.
採(cǎi)用焦磷酸鹽爲(wèi)絡(luò)郃劑研究出一種塑料無(wú)氰倣金電鍍工藝。
And development process of zincate treatment solution,from concentrated to dilute,from single to multi-metal and from cyanide to cyanide free,was reviewed.
較爲(wèi)詳細(xì)的闡述了鋁及鋁郃金浸鋅溶液從濃溶液到稀溶液,從單純浸鋅到多元郃金浸鋅,從有氰到無(wú)氰的發(fā)展過(guò)程。
Study of cyanide free gold imitation plating on plastic surface
塑料無(wú)氰倣金電鍍工藝的研究
Reading occupies most of my free time.
閲讀佔(zhàn)去了我大部分的閑暇時(shí)間。
The crew remained free from scurvy.
那些船員仍然沒(méi)有患?jí)难≈荨?/li>