Palladium

(noun.) a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry.

巴尔德手打

• Palladium, rhodium and tellurium are also met with as alloys of gold. 佚名. 神奇的知识之书.
• Resting on the cylinder was a palladium-faced pen or spring, which was attached to a mica diaphragm in a resonator. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Palladium and rhodium were reduced by Wollaston in 1804. Edward W. Byrn. 十九世纪发明进展.
• Resting against each of these cylinders is a palladium-faced spring, and similar springs make contact with the shaft between each cylinder. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

整理:萨莎