Rotary piston pumps are also often used to convey highly viscous, foamed media just as eccentric screw pumps do. Because both pumps often work in the same environment, it is common for people to simply "copy" the appropriate text for an eccentric screw pump to the rotary piston pump,…

>>> How to install aluminum alloy doors and windows?

Aluminum-plastic doors and windows are widely used in the current homes. In the actual installation and construction, if you do not pay attention to some detail…

GB 10890-89 Methods of measurement and evaluating noise of pumps The methods for the determination of sound power levels in this standard are equivalent to the International Standard ISO 3746-1979, "Acoustics - Determination of Sound Power Levels of Noise Sources - Estimation Methods"…

Abstract: This paper first introduces the concept and working principle of water source heat pump technology, compares it with that of boiler and air source heat pump, and draws a conclusion that water source heat pump technology is a technology that makes use of renewable energy. Subsequently…

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Tuo Cheng Leng Nuan teaches you :

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Tile laying is an indisputable scientific principle, and it is one of the standardized processes for tile construction. However, there are still some construction parties who mislead consumers and do not …

As we all know, high-voltage motor is widely used, it is the main power of industrial and mining enterprises. In metallurgy, steel, petroleum, chemical, water treatment and other industries in large and medium-sized factories and mines, widely used in drag fans, pumps, compressors and various …

In the process of mining and transportation of diesel oil, it is inevitable that there will be a lot of leakage into the water and soil, causing environmental pollution. Recently, the research group of Wu Zhengyan, the Institute of Technology and Biol…