Most of the jades mentioned in daily life refer to nephrite, and there are many kinds of nephrite products. Generally, they refer to white sheepskin jade, white jade, topaz, purple jade, black jade, jasper, sapphire, ruby and northeast Xiuyu produced in Xinjiang. In the jade carving, the white jade with sheepskin is fine in texture and strong in luster, as white as sheepskin, which can be called "the king of nephrite" and "the crown of white jade". In addition, Nanyang jade, Lantian jade, Hotan jade, agate, crystal, coral, turquoise, lapis lazuli, etc., all belong to the category of nephrite. Later, due to the opening of the Silk Road, the jade produced in Hotan, Xinjiang, was unanimously recognized and began to play a leading role in the processing of royal, official and folk jade. Nephrite gradually evolved into a synonym for hotan jade.

From the perspective of development, sculpture can be divided into traditional sculpture and modern sculpture. Traditional sculpture is a visual, tactile and static three-dimensional art form molded with traditional materials; Modern sculpture uses new materials to make anti traditional four-dimensional, five-dimensional, acousto-optic, soft and dynamic sculptures. According to traditional materials, high quality Sculpture According to environment and function, it can be divided into urban sculpture, garden sculpture, indoor sculpture, outdoor sculpture, desk sculpture, shelf sculpture, etc. There are many kinds of sculpture materials, such as clay, stone, wood, metal, gypsum, resin, ivory, etc. Then several categories were developed: wood carvings: wood carvings have a long history. Most of the early themes were centered on religion. In addition to religious icons, they were also used for the decoration of altars and religious places. In countries where wood building flourishes, wood carving develops with architecture. Modern wood carvings have quite diversified styles and features, and artists like to use abstract forms to express them. In addition, wood carving is also an important contributor to the invention of printing. Please see woodcut prints for details; Stone carving: The regions where stone carving is developed have a lot to do with where the stones suitable for carving are produced. The regions where stone carving is developed have a long history of stone carving. Nanning Sculpture In the past, stone carvings were often used as decorations of gardens, signs of doorways, or architectural decorations of mausoleums. Because the stone is thick (not easy to be stolen), and the details of carvings are not easy to be damaged by wind and rain, stone carvings are mostly in outdoor environments. The common stone carving material is marble. There are clay sculptures, ice sculptures, sand sculptures, metal sculptures and pottery.

Relief is a kind of sculpture. The sculptor carves the image he wants to shape on a flat plate, making it separate from the plane of the original material. Relief is the product of the combination of sculpture and painting. It deals with objects in a compressed way, and displays three-dimensional space by perspective and other factors. It is only for one side or two sides to see. The reliefs are usually attached to another plane, so they are used more in architecture and can be seen on utensils and implements. Due to its compression characteristics, it occupies less space, so it is suitable for decoration in a variety of environments. In recent years, it has played an increasingly important role in urban beautification. The relief is as rich and colorful as the round sculpture in content, form and material. The materials of relief include stone, wood, ivory and metal. The relief is a semi vertical sculpture whose image shape protrudes from the stone surface (as opposed to the relief). According to the different depth of stone removal in image modeling, it can be divided into low relief and high relief. The bas reliefs are single level statues with relatively simple contents; The high relief is a multi-level statue with complicated contents. The carving technique and expression style of relief are basically the same as those of round sculpture. Many ancient and modern large-scale memorial buildings, high-end mansions and private houses are equipped with such decorations. Their main works are wall blocks, flower windows, dragon columns (early) and column bases.

The original main application scope of the flexible shaft machine is large-scale jade carving works that cannot be carried by the desktop computer. It is usually used with handheld devices such as the electric mill to complete the detailed work that cannot be carried out by the electric mill. Since the fixed grinding head of the desktop computer is not as flexible as the handle in handling some types of devices, many people will also choose to apply the flexible shaft machine to some smaller or more special types of devices. Due to the continuous improvement of fine requirements for jade articles, jade carvers in China are constantly looking for and trying more favorable equipment. The dental machine is the medical equipment borrowed from the dentist by the jade carver. Its flexibility is the best of all models at present, so it is mainly used for detail processing, but has little application value in heavy work.

Components are reusable software modules oriented to software architecture. It is a reusable software component that can be used to construct other software. It can be encapsulated object classes, class trees, some functional modules, software frameworks, software architecture (or architecture), documents, analysis pieces, design patterns, etc. In 1995, Ian Graham gave the definition of component as follows: component refers to an object (interface specification, or binary code), which is used for reuse, and the interface is clearly defined. Hainan sculpture component appears as a logic tight program code package with a good interface. For example, Ada's Package, Smalltalk-80 and C++'s class and data type can all belong to the component category. However, the operation set, procedure and function can not become a component even if they can be reused. Developers can develop new application systems by assembling existing components, so as to achieve the purpose of software reuse. Software component technology is the key factor of software reuse, and also the focus of software reuse technology research.