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Environmental Impact Assessment of Construction Projects
Environmental Impact Assessment of Construction Projects
Introduction
Development of construction projects is necessary for the advancement of modern society and for the satisfying of people’s economic and social needs. But if not properly managed, construction projects can also cause adverse e......
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water wall water wall
Water wall, also known as the evaporative cooling wall, is an energy efficient form of passive cooling for buildings. Water walls are usually made of vertical concrete or metal panels that are filled with running water. The evaporative cooling process occurs when hot outside air passes over the wa......
Summary of Submersible Pump Standards
Submersible Pump Standards
Submersible pumps are used to move liquids and are usually submerged within the liquid itself. As such, they are a popular choice for handling liquids of all varieties, from fuel and sewage to water. Submersible pumps must adhere to certain safety and performance stand......
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 ......
The concept of linear guides and major brand manufacturers
Linear Guide
Linear guides are motion guides commonly used in industrial automation applications to help components move in an accurately and precisely controlled manner without requiring large amounts of energy or effort. Linear guide systems are built up from a variety of components, most notab......
NC program code standard (ISO EIA)
International Standard ISO EIA
Introduction
CNC programming is a crucial step in the process of creating and running CNC machines. It is the code that enables machines to produce precisely the parts and products that manufacturers need. International Standard ISO EIA, commonly called G and M cod......
Template engineering
Introduction
In today’s world, every industry—from hospitality to engineering—benefits from having a reliable source of projects to work on. Template projects serve as a great starting point for any new venture and provide an invaluable source of ideas and resources for experienced professiona......
wear test
Abrasion Test
An abrasion test, also known as a wear test, is a type of material testing used to evaluate the relative performance of materials and components. Abrasion testing involves subjecting a material to mechanical wear or rubbing in order to measure its resistance to abrasion or friction.......
GB 5773-86 Performance Test Method for Positive Displacement Refrigeration Compressors
，文章的主要内容是要介绍GB 5773-86容积式制冷压缩机的性能试验方法，要包含性能试验环境要求，测量设备，测量指标及试验步骤，请有相关知识的人帮助写。
Performance Test Method of Volume Refrigeration Compressor GB 5773-86
GB 5773-86 is a national standard which aims to define the specification and perfor......
GB 15384-94 Gas cylinder model nomenclature
Abstract
This paper introduces the naming method for gas cylinder models, which is based on the standard GB 15384-94 of gas cylinders. By applying the naming method along with the classification of the standard, this paper presents a set of methods that can be used to designate a particular gas c......
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