Search results for keyword: ponds
programmable control
Programmable controllers are computer based controllers that are used in many industries to manage, sequence, and operate electronic equipment and processes. These controllers are connected to several electronic and optical devices, such as pressure, temperature, and flow sensors, which allow them......
1041 
Lena
Preloading method
Preloading Method
Preloading method is a structural preloading that is usually used in foundation engineering projects. It is one of the efficient means of minimizing settlement under statically and dynamically loaded structures, such as bridges, quay walls and retaining walls. The idea of preloa......
Hardness conversion table and common sense
Brinnel Hardness Scale
Brinnel Hardness Scale is a widely used method for measuring the hardness of materials. It was named after an English inventor, Ernest Brinnel. This scale consists of a series of indentation tests that measure a material’s ability to resist deformation, or hardness. In the......
D80 constant volume blower operating procedures
D80 Constant Volume Blower Operation Procedure
The function of the D80 Constant Volume Blower is essential in controlling air pressure within air systems, helping to accurately move air from one space to another. This blower is designed to operate at a predetermined flow rate and consistently del......
GB 6567.3-86 Piping system graphic symbol pipe fittings
Piping System Graphic Symbols GB 6567.3-86
In order to simplify the diagram presentation of engineering design, Chinese standards have issued a national standard for the graphic symbols used to identify the piping system. The standard is GB 6567.3-86.
The standard specifies the symbols and decor......
GB 6567.4-86 Piping System Graphical Symbols Valves and Control Components
GB 6567.4-86 Symbols for Valves and Controllers in Piping Systems
This Chinese national standard is mainly applicable to the graphical symbols for valves and controllers for piping systems used for ships and machinery. It provides basic requirements and dimension tolerances for the form and size ......
GB 12250-89 Structural Length of Steam Traps
Steam Trap Structure Length A steam trap is an important component in a steam heating system. It is used to allow steam to escape while preventing condensate from entering the system. It ensures that the system is able to efficiently transfer heat by preventing condensate from clogging the system b......
GWPB 4-1999 Discharge Standard of Water Pollutants for Synthetic Ammonia Industry
GWPB 4-1999 Synthetic Ammonia Industry Water Pollutant Discharge Standard
The General Water Pollution Prevention and Control Board (GWPB) 4-1999 Synthetic Ammonia Industry Water Pollutant Discharge Standards is intended to address pollutants discharged from the synthetic ammonia industry, includi......
NTN/NSK single row angular contact bearings
NTN/NSK Single Row Angular Contact Bearings
NTN and NSK are two of the worlds leading bearing manufacturers, and the single row angular contact bearing is one of the most commonly used products from the two brands. Angular contact bearings are made up of two separate components, the inner ring an......
Material Physics Test
Experimental Physics
Experimental physics is the use of physical, scientific principles and methods to identify, quantify, understand and describe the natural world - from the fundamental level, such as subatomic particles, to the macroscopic, such as buildings and other features of the built env......
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