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- A cyanide free process for gold imitation plating on plastic surface was advanced with pyrophosphate as complexing agent. 采用焦磷酸盐为络合剂研究出一种塑料无氰仿金电镀工艺。
- And development process of zincate treatment solution,from concentrated to dilute,from single to multi-metal and from cyanide to cyanide free,was reviewed. 较为详细的阐述了铝及铝合金浸锌溶液从浓溶液到稀溶液,从单纯浸锌到多元合金浸锌,从有氰到无氰的发展过程。
- Winding：Oxygen free copper insulated conductor. The welded parts and transpositions on the windings are wrapped up with Denison insulation material. 绕组：采用无氧铜绝缘导线。绕组的焊接处和换位处用采用丹尼森绝缘材料包扎。
- Oxygen free copper sheets and strips 无氧铜板和带
- PLASMA ARC WELDING FOR OXYGEN FREE COPPER SHEET 无氧铜薄板的等离子弧焊接
- up - casting oxygen - free copper rod 上引无氧铜杆
- Study of cyanide free gold imitation plating on plastic surface 塑料无氰仿金电镀工艺的研究
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Application of RE-Addition to Oxygen Free Copper Bar by Up-Casting 稀土添加剂在上引铸造无氧铜杆工艺中的应用
- Process and Characteristics of Oxygen Free Copper Contact Wire 无氧铜接触线加工工艺及产品性能研究
- Effect of Trace Ag on Properties of Oxygen Free Copper 微量Ag对无氧铜性能的影响
- Zinc base die castings are always copper plated in cyanide baths. 锌基合金的压铸件总是在氰化镀液中镀铜。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- Application of RE Addition to Oxygen Free Copper Bar by Up Casting 稀土添加剂在上引铸造无氧铜杆工艺中的应用
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- Zinc base die castings are always copper plated in cyanide baths . 锌基合金的压铸件总是在氰化镀液中镀铜。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Now that I am free, I can enjoy music for a while. 既然有空，我可以享受一下音乐。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
