First of all, a brief introduction.

1, nickel, a secondary word in Chinese, is pronounced as niè, and its original meaning is metallic element, with the symbol of Ni(niccolum). It is silvery white, tough, malleable and magnetic, and does not react with oxygen in the air at room temperature. Used for manufacturing special steel and other alloys, catalysts, etc. , also used for electroplating.

2. "Ming" is a metallic element, almost silvery white, hard, malleable and ferromagnetic, highly polished and corrosion-resistant. Mainly used in alloys (such as nickel steel and nickel silver) and as catalysts (such as raney nickel, especially for hydrogenation) [Ni]-element symbol Ni; Common phrases: nickel coin, nickel steel.

Second, make sentences

1. In order to reduce the amount of nickel, the electroplating industry attaches great importance to the research of nickel saving and nickel replacement electroplating process; In this paper, the microstructure and nickel distribution of powder metallurgy steel containing nickel are studied. A new process for preparing nickel monoxide from waste nickel catalyst is introduced. The nickel-chromium alloy net is a nickel-chromium alloy net; With the increase of nickel concentration in the adsorption solution, the adsorption capacity of peat to nickel increased.

2. Generally speaking, the insulation layer composed of aerogel insulation material and 9% nickel steel can meet the technical requirements of LNG submarine cryogenic pipeline; But now, tourism, nickel mining and remittances from Cubans abroad are the main sources of foreign exchange; On this basis, the reduction smelting test of roasted laterite nickel ore was carried out.

Third, metal.

1, metal generally refers to a material with unique luster (that is, strong reflection of visible light) but opaque, malleable and thermal conductivity. The narrow concept of metal is a simple materials composed of metallic elements. Pure metals are generally solid at room temperature (except mercury), and most of them are excellent conductors of electricity and heat, with high density and high melting point.

2. The metal resources on the earth exist widely in the crust and ocean. Except for a few very inactive metals such as gold and silver, they all exist in the form of compounds. Metals exist widely in nature and are widely used in life. They are the most important and widely used substances in modern industry.