行业分类
266 篇
56 篇
6485 篇
300 篇
69 篇
46 篇
163 篇
15 篇
1095 篇
482 篇
57 篇
120 篇
285 篇
24 篇
10 篇
22 篇
8 篇
160 篇
50 篇
7 篇
[医药制造业,农、林、牧、渔业,] [2025-11-22]
Cannabis is a flowering plant of different species, such as cannabis sativa, cannabis indica, and cannabis ruderalis. There are a variety of cannabis plants, of which marijuana and hemp are the two most prominent ones. Cannabis contains two cannabinoids, namely, THC and CBD.
[电气机械和器材制造业,仪器仪表制造业,皮革、毛皮、羽毛及其制品和制鞋业,] [2025-11-22]
Leather tanning machinery refers to a type of industrial equipment that is used in the tanning of animal hides and skins into leather. The importance of leather tanning machinery depends on its ability to effectively and efficiently convert raw animal hides into usable leather products.
[计算机、通信和其他电子设备制造业,仪器仪表制造业,] [2025-11-22]
Laser printers use the principle of electrophotography or electrostatic charges for printing. Laser light is used for inducing charges to facilitate printing. The laser light induces charges on the printer drum, which is opposite to the charge of toner inks in the printer. With opposite charge polarities, where the drum is positively charged, and the toner is negatively charged, the ink in the toner gets attracted to the drum. The ink stuck on the drum is in accordance with the image or data provided to the printer. The negatively charged toner ink, which sticks in the format of the image as provided, gets attracted to the positively charged paper. This creates a replica of the original image provided to the printer.
[化学纤维制造业,化学原料和化学制品制造业,] [2025-11-22]
A K-12 makerspace is a place in K-12 schools that allow students to create, tinker, invent, discover, and explore new ideas using a varied range of materials. These materials are referred to as K-12 makerspace materials. Some of these materials are 3D printers, computers, cameras, electronic tools, building materials, and art and craft supplies.
[文化、体育和娱乐业,] [2025-11-22]
Golf tourism is a kind of special leisure tourism where people undertake trips or travel for the purpose of playing golf. The destination in golf tourism is a golf course. The main types of golf tourism are domestic and international, and both men and women avail of golf tourism services. Golf courses can attract more business guests by cooperating with tourism agencies
[木材加工和木、竹、藤、棕、草制品业,家具制造业,] [2025-11-22]
Geofencing is a virtual perimeter generated around a fixed location or moving object, which helps track, monitor, and detect the devices entering and exiting the defined perimeter.
[电力、热力、燃气及水生产和供应业,] [2025-11-22]
[金融业,] [2025-10-31]
_十五五_的三条经济线索-宏观经济专题研究-国信证券
[农、林、牧、渔业,] [2025-10-30]
Landscaping and gardening services are used for the proper maintenance of gardens and lawns. Landscaping refers to an activity that beautifies vacant land, exteriors or interiors of a building, or public spaces such as parks and gardens. This beautification is achieved in different ways, including modifying features, construction of terrains and water bodies, and artificial lighting.
[仪器仪表制造业,] [2025-10-30]
A land survey is a process of measuring and getting details on the dimensions of a particular land area. Land surveying equipment refers to the different types of equipment that are needed to conduct such survey activities. Some types of equipment include total stations and theodolites levels, unmanned aerial vehicles (UAVs), and others. Land surveying equipment has major applications in construction and mining sites for remote surveying
027-87841330