Academy of Sciences: China's export growth in 2010 will be more than 15%
"The impact of the financial crisis on China's industrial economy is very serious. …
Pump seal classification and seal failure analysis (1)
Devices or measures that prevent the working medium from leaking out of the pump or prevent for…
Simple calculation formula for reamer outer diameter
Reaming is often required in mechanical production. The shape of the reamer and other geometri…
Machining of powder metallurgy (P/M) parts
Abstract The use of powder metall…
Development of induction heating technology and equipment
Induction heating is derived from the electromagnetic induction phenomenon found by Faraday, th…
New Design Yn27c Camouflage Gasoline Rock Drill Machine
Model NO.: YN27C…
"We slim down" for DWG files in Zhongwang CAD
Zhongwang CAD uses the DWG file format. If you want the daily large DWG file to achieve sli…
Autumn sowing crops have good balance fertilization effect
Fertilization of autumn-sown crops shou…
Application Status of Ground Source Heat Pump Technology in Beijing
Abstract: In this paper, the ground source heat pump technology and its application in China a…
Second-hand housing renovation: safety first
Now the renovation of old houses is more complicated, and old buildings need to be refurbished …
100,000 scholarships Yufa Abrasive Group and Henan University of Technology continue to write a new chapter of cooperation
At 2:30 pm on December 2, the award ceremony for the honorary scholarship of He Guanyu and t…