1.5 Analysis Step 1 Instrument Calibration: The use of various pH meters and potentiometers is not consistent. The electrode treatment and instrument use are performed according to the instrument instructions. Set the test solution to the same temperature as the standard buffer solution,
"Selected opportunities" for more than 14 years of fuel tax, the recent sudden abruptly "running" advance. On November 18, Han Wenke, director of the Energy Research Institute of the National Development and Reform Commission, said in an interview with a media that the Chinese g
In November, people in northern China have just begun to feel the winter cold. However, the domestic heavy truck market has long been shrouded in winter from south to north. According to the latest statistics from the China Association of Automobile Manufacturers, the production and sales volume
After two years of technical research, Nantong Yatai Ship Engineering Co., Ltd. produced the first domestic marine inert gas system with independent research and development and independent intellectual property rights. Yesterday, the system passed the certification of China Classification Society.
List of basic medicines: After preliminary selection, the catalogue includes 756 kinds of medicines, including 430 kinds of western medicines and 326 kinds of Chinese medicines; manufacturer's choice: take 3-5 years as a stage, and the province or city as a unit determines fixed-point manufactur
On the morning of December 4, the National Engineering Research Center for Viral Biotechnology and Henan University signed a cooperation agreement with Zhongzhou Hotel in Zhengzhou, announcing the establishment of the "Viral Biotechnology National Engineering Research Center Henan Province Ce
The reporter learned from steel companies and research institutes yesterday that in order to stimulate steel exports and ease the current difficulties faced by steel enterprises, relevant government departments are studying relevant policies. China will cancel the steel products for about one and a
In the face of the current economic environment, many small and medium-sized enterprises that have chosen to stand upright in the "winter" have acted to speed up their technological transformation in order to get out of trouble sooner. Among them, as an indispensable tool for the operati
Vegetable spraying micro fertilizer technology method 1, concentration Appropriate spraying concentration can receive good results, and high concentration is not only unfavorable but harmful. Usually boric acid or borax 0.05% -0.25%, ammonium molybdate 0.02% -0.05%, copper sulfate 0.01
Model NO.: Yg-Sw03 Product Name: Screw Mortar Grouting Pump Model: Yg-Sw03
Today's markets are increasingly using hot runner systems. As with many technologies, hot runner systems have emerged to make things better and faster at less cost. The cold runner system wastes every time the mold is opened. When injection molding the parts, the multi-cavity cold
The temperature in the house is controlled by the heat department, but now there is a small device that can be adjusted to the temperature of the home heating by pressing it onto the radiator. In the first joint office building of Urumqi municipal government, a machine that shows the temperature ins