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Environmental elements
Environmental Elements
The environment is made up of physical, chemical, and biological components that interact to create a complex system. People are a part of the environmental element, as human activities often change the environment in unpredictable ways. To protect the land, air, and water ......
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Main shaft and auxiliary shaft of iron ore
Iron ore is an important mineral resource. Its exploitation requires a well system. The equipment of this system includes the main wells and subsidiary wells.
Main wells are essential for the efficient exploration and exploitation of iron ore. The main wells are the basis for the establishment an......
Analysis of Some Inadequacies of Water Source Heat Pump Units
In recent years, with the rapid development of urbanization and the frequent use of air conditioning engineering, the application of geothermal energy has become increasingly extensive. Geothermal energy is a renewable energy source, which can reduce the burning of fossil fuels, reduce air polluti......
History of Machinery in Ancient China (Part 2)
The History of Ancient Chinese Machinery (Middle Ages)
The Middle Ages in Chinese history (589–960 AD) are known as the period of the Five Dynasties and Ten Kingdoms. During this era, the Chinese began to develop techniques for machine building and mechanical engineering that would later contrib......
The definition and development history of crossbow
Definition and Development of Crossbow
Crossbow is a weapon for firing arrows or bolts at targets by means of lever, rope, and pulley systems. It was the earliest form of projectile weapons and has been used for thousands of years in both war and hunting.
The word crossbow itself stems from the G......
Influence of plateau environment on the safety performance of tractors and agricultural transport vehicles and countermeasures
作主体
Abstract
Highland environment is often referred to as the “roof of the world”. It is an uninhabitable cold place with high altitude and low oxygen, making it a dangerous place for humans and machines alike. In addition, transportation vehicles like tractors, farm carts and trailers are oft......
Gold painted
Modern technology has changed the way people interact with one another. Instead of face-to-face conversations, people now communicate through text messages, emails, and social media sites. Although social media sites may be useful for connecting with friends and family, they can also cause people ......
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Life is about the Journey, Not the Destination
Have you ever heard the saying “it’s not about the destination, it’s about the journey”? This simple phrase rings true in a wide variety of contexts, both professional and personal. As humans, our lives can be seen as a journey, full of many twis......
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The Power of Nature
The forces of nature have each been around for as long as living creatures have been on the earth and are at times either feared or respected by man. They each have such an awesome and powerful presence that when seen by any creature, whether it be human or some other type of ......
"Cold" Tundish
The chill of winter is a special experience, especially when it snows. Imagine the snowflakes drift lazily down through the cold darkness, the sound of silence muted only by the distant hoot of an owl. The trees, valleys, and houses all lie covered in an enchantment of gleaming white, while the mo......
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