Search results for keyword: kingdom
Quick cutting mouth
It is often said that a great education, and the ability to learn, are two of the most valuable gifts a person can receive. For many, the contributions an education can make to life are so substantial that they become dedicated to ensuring that everyone has the opportunity to improve their life th......
1141 
Sophie
specific revolution
Paradise on Earth
There is one place that I love more than any other, a place I can always return to and will never get old. That place is home. Home has the softest of touch, the strongest of embraces and a warmth that can only be found there. When I walk through the door, I am instantly accept......
Summary of Control Valve Standards (3)
Valve Standards
ANSI
American National Standards Institute (ANSI) sets the industrial standards for the design and testing of valves. ANSI designates dimensions and performance parameters for all types of valves, including ball valves, gate valves, globe valves and butterfly valves. ANSI also se......
History of Machinery in Ancient China (Part 1)
History of Ancient Chinese Machinery (Part 1)
The history of Chinese machinery and tool use dates back thousands of years. From flint tools used to sharpen wood and stone tools used to build structures, Chinese inventors have been at the forefront of developing tools and machinery that changed th......
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......
Summary of Shut-off Valve Standards
Butterfly Valve Standards Summary
A butterfly valve is a valve that uses a rotary motion of its circular disc to control the flow rate and pressure of a substance. Butterfly valves come in several standard designs and configurations, and each has its own set of rules and guidelines as set out by ......
Chinese and English comparison and interpretation of cage
Once upon a time, in a distant land, living among a tight-knit group of farmers on the outskirts of a sprawling city, there was a young and curious girl. She often spent her days in the fields and orchards, tending to the vegetables and fruits, learning the stories and secrets of the earth. There ......
Common legal units of measurement
Metric units are units of measurement that use the international system of units (also known as the metric system). Common metric units include grams for mass, meters for length, and liters for volume.
Grams measure mass, which is the measurement of the amount of matter in an object. Grams are us......
Erichsen test methods and related standards in my country and some countries in the world
Erichsen test has become a reference standard used to measure the formability of sheet metal. It is an international standard test used to evaluate the formability of a material when subjected to a force measured in units of force. The Erichsen test has been used for many years by many different c......
Specifications for British Pure and Chromium Copper Castings
Specification for British Copper and Chromium Copper Castings
Introduction
Copper and chromium copper are two of the most popular types of castings. Copper is valued for its thermal and electrical conductivity, corrosion resistance and ductility. It is also found in many everyday items including......
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