In the middle of pregnancy, she suddenly discovered that she and her husband were HIV-infected. Xiao Li (a pseudonym), 26, decided to give birth to her baby. Yesterday morning, 38 weeks after she was pregnant, she had a caesarean section and her next daughter. In order to ensure safety, Wuhan Fir
Read moreWhether it is from resource utilization or environmental protection, Chinese government and scientific and technological workers attach great importance to the research and development and utilization of lignin. It has been found that lignin is widely used in various industrie
Read moreThese basic properties of rubber are that it has become an excellent material for shock absorption, sealing, flexing, abrasion, corrosion, insulation and bonding in the industry. These basic properties of rubber are that it has become an excellent material for shock absorption, sealing, flexing, a
Read moreThe liquid flow rate of the magnetic flap level gauge and the rise height of the float, that is, the flow area of ​​the magnetic flap level gauge, have a certain proportional relationship, and the position height of the float can be used as the flow measurement. The liquid flow rate
Read moreFirst, safety and security 1, the construction of hanging rope exterior wall paint should be carried out under the conditions of ensuring safety, all high-altitude operations personnel are required to conduct high-altitude operations training, must have rich practical experience and good physical f
Read moreRecently, entrusted by the National Development and Reform Commission and the Ministry of Industry and Information Technology, the China Iron and Steel Association held a meeting in Beijing for the implementation of the State Council's Guiding Opinion Conference on resolving the contra
Read moreAbstract In recent years, the development pattern of China's hardware industry is undergoing changes. At present, the development of the industry is tending to be large-scale and diversified. At the same time, with the rapid development of China's economy from high-speed development t
Read moreToday, eyeglass sales, in the new round of consumer perception, is not just selling a product that protects eyesight, but is also a subsidiary of other integrated consumption—a combination of jewelry, a stylish embellishment, a casual fashion, and health. The must-haves. As people's econ
Read moreGood video transmission design is a very important part of video surveillance systems. As the most important transmission medium, wire and cable products play an indispensable role in the data, video and audio transmission and power connection of security systems. On October 29, 2013, the
Read moreInfrared and night vision cameras have the outstanding advantages of night vision, concealment and stability in monitoring. As we all know, infrared cameras should be installed to avoid direct light source, because the infrared light is based on the photosensitive resistor installed in the infrared
Read moreThe transport of dangerous goods has always been the bridge and link to the production, operation, storage and use of dangerous goods such as refined oil and natural gas. Such petrochemical products can easily lead to burning and explosion accidents. They have the characteristics of large
Read moreã€Abstract】With the application of seismic damping technology in high-rise and super-tall buildings, the welding technology of extremely low yield strength steel for energy consuming devices has received increasing attention from the industry. After reasonable selection of welding metho
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