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Visual symbols of CNC machine tool operation instructions
Introduction
Numerically Controlled (NC) machining is an automated process used to cut complex shapes into pieces of material. NC machining requires an operator to be trained on the use of a programmable interface to control the machinery. This requires the operator to first understand the variou......
1218 
Caroline
GB/T 222-1984 Sample sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished product
GB/T 222-1984 specifies the sampling method for the chemical analysis of steel and the permissible deviations for chemical composition of finished products.
The purpose of this standard is to provide technical requirements for the sample method of chemical analysis of steel, and the permissible d......
GB/T 713-1997 Grade and Chemical Composition of Steel Plates for Boilers
GB/T 713-1997 Steel Plates for Boiler and Pressure Vessels
This standard GB/T 713-1997 was jointly established by Chinas General Administration of Quality Supervision and Testing Committee of Machinery Industry and Metallurgical Industry standardization work group on April 12, 1997. This standard......
RP technical terms in Chinese and English
What is Ripple?
Ripple (XRP) is a real-time gross settlement system, currency exchange and remittance network created by Ripple Labs Inc., a US-based technology company. Ripple is built upon a distributed open source protocol, and supports tokens representing fiat currency, cryptocurrency, commod......
Geological publications
Introduction
Geology is the science that is devoted to the study of the earth and the processes responsible for its origin, composition and structure. As such, it is an inherently interdisciplinary field, drawing on the principles of the physical sciences, such as physics, chemistry and geology,......
HDOMF biological aerated filter water purification device
HDOMF biological aeration biofilter water purification system
Water is one of the most important components of living systems, but can be easily contaminated by various pollutants from industrial activities, agricultural run off, and other human activities. HDOMF biological aeration biofilter (B......
World Solar City Convention & Exhibition
World Solar City Conference and Exhibition
The World Solar City Conference and Exhibition (WSCFE 2020) is the premier event for cities to access the clean energy economy. The event convenes leading urban professionals, policy makers, academics, and renewable energy providers from around the world ......
Turbine blade
Transparent Wing
Introduction
The transparent wing, also known as the aerodynamic transparent wing, is an aircraft wing that is transparent to the air.This wing structure has been used in some military aircraft and has made an indelible impact in the fields of aeronautical research, aeronautical e......
Common sense of agricultural machinery maintenance: six ways to save energy for agricultural diesel engines
Energy Saving Six Measures for Agricultural Diesel Engines
Agricultural diesel engines are widely used in agricultural production and have important significance for promoting agricultural production. However, as the engine working environment is poorer and the cooling and lubrication systems are......
elevator
The History of Elevators
Elevators, commonly known as lifts, have become an integral part of modern life and culture. We take them for granted while they are completely taken us to different floors of the buildings. They are found anywhere where heights come into play, from sheer skyscrapers to ......
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