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A Survey of Ship Power Plants (Part 2)
2.2 Types of Ship Propulsion Systems
Today’s vessels are equipped with sophisticated propulsion systems to meet the needs of modern navigation. There are four primary types of propulsion systems that are widely used in commercial and military vessels today: diesel systems, electric systems, stea......
1060 
Lily
bow and crossbow
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bow and Arrow
bow and arrows have been around for thousands of years, and have found uses in hunting, warfare, and even in sports and recreation. Although the technology behind bows and arrows has advanced significantly over the centuries, the basic designs and principles behind them remain the ......
ancient history of machinery
Ancient History of Machinery
The very first machines were created as replacements for human skills. For example, back in ancient Egypt, 4000 BC, farmers and merchants used shadufs, a manual machine created to lift water from a river and put it into a crop field. This allowed them to control the a......
Special machine tool for pipe processing
Introduction to pipe processing CNC machine tools
Pipe processing CNC machine tools are special machine tools for the processing of pipes. They are widely used to process straight pipes, fitties, flanges, tee joints, elbows, bellows and so on.
Pipe processing CNC machine tools are often used in ......
Precautions for installation of wafer check valve
Installation Requirements of Clip Check Valves
The clip-type check valve is a check valve commonly used in fluid pipelines. It has the characteristics of simple structure, convenient installation, sensitive and reliable action. This article introduces the installation requirements of clamshell ch......
valve logo
Valves are one of the most important devices used in a myriad of industries, from chemical and food processing plants to plumbing systems and engineering operations. Valve identification is essential to ensure the correct functioning of the entire system these components are embedded in. Every val......
Technical parameters of piston pusher centrifuge
Centrifugal Feeder Technical Parameters
A centrifugal feeder is a device that uses centrifugal forces to move materials from one area to another. It is most commonly used to move dry particulate matter from one part of the system to another. The most common type of centrifugal feeders are used to......
Machine tool vises: planer vises
，主题不限，可以使用软件生成。
The world has come a long way thanks to the advances in technology and science that have helped the human race make leaps and bounds. Judging by this, the future of technology looks incredibly promising, with the possibility of innovation and invention that could trul......
Check the condition of the V-belt and adjust its tension
V-belts are among the most popular belt pulley systems on the market and are extremely versatile. There are various types of V-belts, including the flat belt and the A, B or C belt, with each type having its own advantages. For example, the A belt is often used in automotive applications, as it is......
Surface treatment method of aluminum alloy in metal
Surface treatment of Aluminium alloy
Aluminium alloy is an important material in modern industry, and its surface treatment plays an irreplaceable role in the application of this material. The surface treatment of aluminium alloy can be divided into chemical, mechanical, physical and electrochemi......
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