2011 Security Exhibition: The giant electronic fence giant attracts attention
[Zhongguancun Online Beijing Security Exhibition Live Report] On April 26, 2011, the 9th ...
Cat : 202408
Foreign security industry development standards
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After more than 20 years of development, China's security market has continued to expa ...
Gao Jifan: Roof solar power can meet 30% of China's total electricity consumption
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The 2nd Global Think Tank Summit was held in Beijing from 25th to 26th. Gao Jifan, chairma ...
Main points of corn fertilization technology
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1. The demand for fertilizer nitrogen, phosphorus and potassium varies with the yield, region a ...
Roots vacuum pump classification and characteristics
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First, the concept and classification of Roots vacuum pump: 1, concept: Roots vacuum pump is a rotar ...
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On the morning of May 17, the Shanxi Provincial Development and Reform Commission organize ...
Butterfly valve maintenance precautions
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1, the butterfly valve butterfly installed in the pipe diameter direction. 2, the butterfly plate is ...
Home building maintenance tips how to extend the life of composite wood flooring
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The economical and practical composite wood floor has become the main choice for the ground decora ...
Bangpu Company: 230 Million Waste Battery Renewals Every Year
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Hunan Bangpeng Cycling Technology Co., Ltd., which recycles used batteries, held the found ...
Small-sized space creative design method small-sized space design skills
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The current housing prices are so high, many people have worked hard all their lives ...
How can the quality of the helmet be linked to the head?
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With the advent of the summer season, all construction sites in Harbin are rushing to the construct ...