Search results for keyword: bam
bamboo derrick used for drilling and extracting oil and gas in ancient China
China has a long history with oil, with the use of bamboo drilling rigs dating all the way back to the Ming Dynasty (1368-1644), when it was used to dig wells that could reach up to 200 meters in depth.
In the eighteenth century, bamboo rigs were used to tap into shallow natural gas deposits. Thi......
1040 
Sophie
Batching equipment
Ingredients Equipment
The ingredients in any recipe are just as important as the equipment that you use to prepare your food. Different dishes require different ingredients and items of equipment, so it’s important to be aware of what needs to be bought and stored before you begin cooking. Depen......
Manual hoist
Once upon a time, there was a young boy who lived in a small village. He had no family or friends and was very poor. One day, he happened to come across an old man walking on the side of the road. The man was carrying a big cloth bag on his back.
The old man stopped and kindly asked the boy what......
Ancient Chinese Vehicles
，答：
Ancient Chinese vehicles are any type of vehicle used in Ancient China. Vehicles were an important part of Chinese culture and history, as they provided a means of transportation and allowed the Chinese to explore and expand their empire. Over the centuries, vehicles such as chariots and cart......
Venturi tube
Why Is Studying Psychology Important?
Studying psychology is important in so many ways. It can help you understand yourself and others, become a better communicator, develop deeper relationships, and increase your self-insight. Psychology can equip you with the skills to better navigate life and ......
Methods and practice of maintenance of electrical equipment of CNC machine tools (2)
2. Maintenance Practice of Electrical Equipment of Numerical Control Machine Tool (Part Two)
2.1 Check the Electrical Terminals
A numerical control machine tool has many electric terminals. These terminals must be inspected regularly to prevent poor electrical contact caused by corrosion or loos......
Toothed wheels in ancient China
Toothed wheels have a long history in ancient China, with records of their use stretching back as far as 4000 BCE. For centuries, wooden and metal toothed wheels were used in a variety of ways, including in clocks and other mechanical devices, to measure time and carry out a range of functions.
......
Development Status of Metal Powder Production Technology by Rapid Solidification
：
Rapid Solidification Process for Metal Powders
It has been found that some materials, when exposed to a rapid cooling process, produce a powder or a material in which the atoms do not have the chance to arrange themselves in a classic crystalline structure like any other solid material. With t......
Typical nitrocarburizing molten salt composition
Typical Nitrogen Carbon Permeation Salts
Salt permeation tests (SPTs) provide information on both the theoretical and practical performance of potential construction materials in terms of absorption, gas release, and permeation of fluids and gasses. This allows researchers to better understand bo......
Normalizing of ferrule
Sports – Performance Enhancing Drugs
When most people think of extreme sports, they are reminded of the risks that come with it. These risks such as potential injuries and life-threatening conditions can be enough to stop people from becoming a part of such sports, but what many people forget is......
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