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“platinum”写句子 用platinum造句大全

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Buildings are rated silver, gold or platinum.

platinum造句

Edison's lab put a lot of effort into making a bulb with a platinum filament, but that work went nowhere, because platinum has a relatively low resistance.

Soyabeans and platinum, among others, have also reached record prices in the past week.

Then up here, in this [top right] quadrant, we have the platinum projects.

This week we provide you with gold, silver and platinum charts.

That iron carried with it a slew of iron-loving metals, including gold and platinum.

On her eleventh birthday, her father bought her a convertible. The car had platinum rims and silver spokes.

It was just a garden variety platinum nucleus pretending to be a monopole by cleverly decaying into osmium and tantalum.

Protons left behind by the oxygen migrated to a second electrode made of platinum and formed into hydrogen.

Lower production also means less demand for palladium and platinum, used in the production of catalytic converters.

The film flops and bounces around, and at the center of it sits Michelle Williams dressed up in platinum wig and beauty mark doing Marilyn Monroe.

In a laboratory vault outside Paris is a small cylinder of platinum-iridium alloy that serves as the standard for all mass measurements worldwide.

But gas bubbles in the platinum had led Edison to develop an efficient vacuum pump to remove the air from the inside of his bulbs.

Palladium (Pd): Palladium is similar to platinum in both appearance and in use; it appears in vehicle emissions equipment and electronics.

"The pure metal is too hard to work with to have any significant uses; alloys with platinum are used in jewelry, pen points, surgical pins and pivots, electrical contacts and sparking points, and extrusion dies."

Researchers spent three years developing the Zafirro Iridium, which has a handle made of 99.9 per cent pure iridium - the most corrosion-resistant platinum metal, found only in meteorites.

"They are commonly divided into three groups: metals (platinum, iridium, osmium, iron, zinc, tin, gold, silver, copper, mercury, lead, chromium); semimetals (Bismuth, antimony, arsenic, tellurium, selenium); and nonmetals (sulfur, carbon)."

Hamer suggested that the electrolysis of an aqueous solution containing lead nitrate and concentrated nitric acid, maintained at 93oC with use of a platinum gauze anode, produced the most consistent potential values.

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