Camellia is one of the famous flowers in China. Because of its beautiful and elegant shape, rich and diverse colors, Camellia has always been favored by many literati. Moreover, Camellia implies humility, ideal love, virtue and loveliness. Even in the cold season, it is still noble and beautiful.

Camellia is a very colorful flower, because of its natural beauty, has been loved by many people, so what is the meaning of Camellia, which has the intention of humility, Camellia branches and leaves evergreen all the year round, even in the cold season can also be proud to bloom, not arrogant and not impatient, also does not lose its unique beauty.

Camellia is widely recognized as a “charming flower”, which has a long history of cultivation in China. At the same time, it is also the provincial flower of Yunnan Province, representing the ideal love. Due to its unique and elegant shape, rich and diverse colors, Camellia symbolizes the ideal love in the heart. I hope that those who like it know that it is one of the best flowers to present to lovers.

Camellia is one of the top ten famous flowers in China, and it is also a precious flower in the world. Its branches and leaves are rich and shiny in the four seasons of the year. In winter, its colors are red, pink, white and other colors. Although it is noble, it does not lose its beauty. It symbolizes the virtue of women and is a kind of highest praise.

Source: @___soil

Dung beetles belong to Coleoptera, Scarabaeidae. The body is black or dark brown, large and medium-sized insects. Dung beetles can use the polarization of moonlight to locate and help feed. It has a certain phototaxis. There are more than 20000 species of dung beetles in the world, distributed in any continent outside Antarctica. The most famous dung beetle lives in Egypt and is 1-2.5 cm long. The largest dung beetle in the world is a giant dung beetle 10 cm long. Most dung beetles feed on animal dung and are called “scavengers of nature”.

Dung beetles usually feed on feces or humus, which plays an important role in ecosystem balance. The ecological value of dung beetles includes transporting feces to the ground, secondary transmission of seeds, pollination, control of pests, intermediate host of parasites, development and application prospect, important bionics significance and theoretical significance.

Source: @1stellz

Lily of the valley is the return of happiness. It’s small plant shape, bell shaped flowers, and pleasant fragrance, loved by people. It means happiness and purity. In France, people give each other this flower on May 1st to express their wishes for peace and happiness in this year. Generally, the people who get this flower will hang it in the room and keep it for a whole year, which means that happiness will stay forever and the meaning is very beautiful.

In the United States, we call it “Lily in the valley” and “tears of the virgin”. Its English name is “Our Lady’s tears”. It can be seen that in the United States, Cymbidium means something pure and noble. In Holland, the May of every year is the “lily of the valley Festival”. On that day, people send each other lily of the valley, hoping that the other side will be favored by Cupid. In Holland, the bell orchid represents innocent and romantic feelings, happiness and expectation.

Source: @apprenticejess

Welding is a kind of manufacturing process and technology of joining metal or other thermoplastic materials such as plastics by heating, high temperature or high pressure. The history of metal joining can be traced back thousands of years ago. The early welding technology was found in Europe and the Middle East in bronze age and iron age. Thousands of years ago, the Babylonian civilization began to use soldering technology.

There are many kinds of energy sources in modern welding, including gas flame, arc, laser, electron beam, friction and ultrasonic. In addition to being used in factories, welding can also be carried out in a variety of environments, such as the field, underwater and space. No matter where, welding may bring danger to the operator, so appropriate protective measures must be taken during welding. The possible injuries to human body caused by welding include burn, electric shock, vision damage, inhalation of toxic gas, excessive ultraviolet radiation, etc.

Source: @__jordanrogers

Oil rig is a kind of metal truss with a certain height and span, which is an important part of drilling equipment. It is divided into six main parts: crown block, main body of tower, racking board, lifting tower, auxiliary leg and chassis. In the process of drilling, the drill tower is used to place and hang the lifting system, bear the weight of drilling tools, store drill pipes or drill collars, etc. it must have sufficient bearing capacity, strength, stiffness, overall stability and necessary operation space. The basic technical parameters of the drilling tower include: effective height, effective load, the height of the second floor and the vertical root capacity, the basic size required for the installation of drilling equipment, etc. The development trend of drilling tower is also introduced in detail.

Oil rig is an offshore structure mainly used for drilling exploration wells. The platform is equipped with drilling, power, communication, navigation and other equipment, as well as life-saving and personnel living facilities, which is an indispensable means of offshore oil and gas exploration and development.

Source: @aaatattoo