It is well known that, alumina has the characteristics of high hardness, high melting point, good wear resistance and stable high-temperature chemical properties, and is widely used in industrial production. Due to its high hardness, it can be used in the abrasive grinding industry to produce abrasives, polishing powders, etc.; due to its high temperature chemical properties, it is the main raw material for refractory bricks, enamels, porcelain and artificial gems in the refractory and ceramic industries.

Biomass can be regarded as a promising alternative energy source for petroleum. The key to convert biomass into important energy materials and basic platform compounds is to convert cellulose, an important component of biomass, into glucose by directional hydrolysis.

A-10 Thunderbolt II is a single-seat twin-engine attack aircraft made by US which  provides a support for ground forces, including attacking enemy tanks, armored vehicles, armed vehicles, and important ground targets.

Tungstate red phosphor white LED is a new type of solid-state lighting electric light source (SSL). Its principle and structure are different from those of previous vacuum electric light sources such as incandescent lamp and fluorescent lamp. SSL light source has many advantages, especially high light efficiency, energy saving, long life and pollution-free. It has great application value and prospects.