Free video conferencing features There are a lot of free video conferencing software on the market today, such as 呱呱, YY, Fetion QQ, MSN, etc. These are so-called free software, these software is often used for entertainment, not a real For professional video conferencing, these softwar

Researchers at the Massachusetts Institute of Technology (MIT) and Stanford University in the United States have jointly produced a tandem-structured solar cell in which a monocrystalline silicon solar cell and a perovskite solar cell are laminated. Although

The research team used sheet-like graphene materials to compress the ice that produced the new crystalline structure, "Square Ice," which was produced by extruding water droplets from sheet-like graphene material. From the microscopic level, it was a square-shaped atom

Mr. Zhang presented awards to outstanding employees. The company also provided a stage for employees to show themselves and the team. The partners in each department brought dances, singing, cross talks and other forms of different performances. The annual conference began with "Opening the Do

The management of Chinese herbal medicine Astragalus membranaceus is also very important in the seedling stage, but the seedling stage is also divided into two cases. The former case is to start managing the seedlings when using the seedlings to breed, and the other is to transplant the seedlings.

1 Overview In recent years, with the wide application of computer automation control in casting, especially the level of automation of modeling process is developing rapidly, this fast-developing automatic modeling is more and more strict on the quality requirements of molding sand. Therefore, bot

Chemical pump is a new type of energy-saving equipment, its design needs to strictly comply with international standards, these products are characterized by a rational layout, the user experience is good. Nowadays, these kinds of products have great significance in industrial, urban water supply,

Nowadays, solid wood furniture is popular all over the world. People living on the ground floor do not have enough funds to buy solid wood furniture. Therefore, panel furniture made of artificial boards has appeared in the furniture industry. Benefits of slab beds and slab be

Tibetan green radish water can help to treat diabetes, coronary heart disease and various vasculitis, so it is named green tea. Tibetan green odoriferous flowers are produced in the cold regions of Tibet and are slightly cold. The growth period is only 40 days. Tibet has unique precious herb plant

In the course of our renovation, hydropower is an important link. Their selection is very important. What types of wire and cable are available? Today, we take a good look at the wire and cable specification list . Wire and cable specification list, recommended 1 , BV copper core PVC insulated wi

I believe many people will play games at home and relax, especially for male compatriots. The most needed game play is a professional game display, so that the display's color screens are all relatively good, playing games will not feel so tired eyes, the screen smoother and play more fun. Ben