HS code-based trade data analytics

List of contents of this article:

• 1, Community property greening management
• 2, What colors belong to the yellow and green systems?
• 3
  、 What is three-dimensional greening technology? What is the best three-dimensional greening technology in China?
• 4. Airbus A320's Do the three hydraulic systems (green, yellow, blue) work at the same time
• 5, What is the concept of green space system?

Community property greening management

1. Green space and greening facilities should be protected, and the right to stop and denounce the damage to green space and greening facilities. If you find someone stepping on flowers and plants or destroying plants, you must stop them to ensure that the greening is effectively protected, create a good growing environment for flowers and plants, and also give the owner a good living environment.

2. According to the provisions of the Property Management Regulations, the property management company shall carry out daily maintenance, repair, rectification and other services related to residents' lives of houses, public buildings, equipment, public facilities, greening, sanitation, sanitation, public security and environment in the community, including green Transformation.

3. The greening of the community is managed by the property management company and belongs to all the owners of the community.According to relevant regulations, the green space in the park plan is jointly owned by all owners and does not belong to any unit or individual, and no unit or individual shall occupy it privately. For owners who illegally occupy the green space, the property management company has the right to request them to rectify and restore their original appearance.

4. If the greenery of the community is damaged, who will take care of it? If it is found that the greenery of the community has been damaged, you can notify the property management company as soon as possible. According to the regulations on property management, the property management company is employed by the owners of the community and has corresponding management rights for public security, environmental protection and property management in the community.

5. The transformation of community environmental sanitation and greening requires systematic coordination and cooperation from all departments. Adopt centralized and comprehensive improvement of environmental sanitation and greening in the community, and create the basic conditions for the introduction of property management for old communities of a certain scale.Explore new management models.

6. Legal subjectivity: The provisions of the Civil Code of the People's Republic of China on community greening are: the green space in the building zoning belongs to all owners except for urban public green space or explicitly belonging to individuals. If the green land is occupied without consent, the property manager may order it to restore its original state. .

What colors belong to the yellow and green systems?

Lemon yellow is the color of lemon skin, with grass green in the yellow. Canary color (Canary) is a fresh and bright yellow color like the color of canary feathers.

What color is yellow plus green? Yellow plus green is green yellow. Any color can be mixed with red, green and blue in different proportions. This is the principle of three primary colors, and yellow plus green is green and yellow. Any light color in nature can be mixed by three light colors in different proportions.

Warm color system: red, orange, yellow, red-purple, red-orange, yellow-orange, yellow-green. Cold colors: purple, blue, green, blue-purple, blue-green, black. Medium color system: gray, black, white, gold, chestnut, brown.

Yellow is obtained by mixing green and red, so when red and green light are mixed with each other, yellow light can be produced. Green is the most common color in nature. It represents hope, freshness, nature, etc.

What is three-dimensional greening technology? What is the best three-dimensional greening technology in China?

1. Three-dimensional greening technology can be divided into modular, hydroponic, flower groove inclined placement and frame traction; among them, modular three-dimensional greening is most used by middle and high-end customers, because it is the most convenient and simple to maintain in the later stage; it can be more freely selected in plant selection and color block composition, and On-site installation blocks, high survival rate.

2. Vertical greening with soilless lawn blankets can have immediate results. The effect of greening is very obvious, which cannot be compared with any other vertical greening method.

3. Three-dimensional greening refers to a greening method that uses plants, walls, sheds, railings and other structures to green in three-dimensional space to increase urban greenery and improve the ecological environment. Expand knowledge: Three-dimensional greening includes a variety of forms, such as roof greening, wall greening, balcony greening, bridge greening, etc.

4. With the popularization of retaining walls, retaining walls will become a symbol of urban construction. By using the three-dimensional greening creation technology of landscape retaining walls, it can increase the effectiveness of retaining walls and promote China's solution of environmental problems.

Whether the three hydraulic systems (green, yellow, blue) of Airbus A320 work at the same time

Just for easy recognition, getting a code is like calling it No. 1 hydraulic and No. 2 hydraulic. For example, the Airbus 320 is generally driven by green hydraulics on the left, yellow hydraulics on the right, and a set of electric blue hydraulics.

Before the plane takes off, the hydraulic system PTU also needs to start working. Generally, it will make a sound like rubber friction for about 10 seconds, which is a normal phenomenon. The on-board hydraulic system is a complete set of devices on the plane, which relies on oil as a medium to work. When the plane wants to slow down or take off and down, a hydraulic system is generally required.

Involving the priority live door of the hydraulic system, the landing gear will be cut off by the priority live door.

At the same time, draw on the advanced avionics technology of Airbus A320. When designing the A340, it was developed together with the dual-engine A330.

RAT can be released at any time by pressing the manual on button of the stamping air turbine. When both engines fail, or the green and yellow system has a low oil level, or the green and blue system has a low oil level, the RAT will automatically release.

While releasing the ranking of deadly models, the magazine also announced the ranking of global safety models. The Boeing 777 aircraft topped the ranking with excellent performance of 19 million hours without fatal accidents. In addition, Airbus A340, Airbus A330, Boeing 737NG, Boeing 76 Airbus A320, etc., which are often encountered by passengers when traveling, also appear on the list of the safest models.

What is the concept of green space system?

1. Green space system is a whole composed of various types and scales of green land in the city.

2. Urban green space system refers to a system composed of various types of green space within the urban built-up area or planning area. The functions of the urban green space system include: improving the urban ecological environment, meeting the leisure and entertainment requirements of residents, organizing the urban landscape, beautifying the environment and preventing and avoiding disasters, etc.

3. Urban garden green space system (system of open space), an ecosystem composed of various types and scales of garden green spaces in the city, is used to improve the urban environment and provide a recreation area for urban residents.