Kjeldahl is named after the "Kedar" sample processing method, which is the basis of the current Kjeldahl nitrogen analyzer. With the development of science and technology and constant optimization and improvement of the Kjeldahl analyzer, a new type of fully automated Kjeld.......

High-level operations are closely related to our lives. Some high-rise building walls have surface decoration, internal maintenance of steel structure buildings, film and television cameras, etc.; in short, any work that ne.......

"For 60 days, I first selected one construction project from five decoration companies, and then went back and forth over 1,500 kilometers of major building materials cities, communicated with more than 80 businesses, and finally bought a door at A, B bought paint, and C bought a floor til.......

According to Xintian Technology Co., Ltd.'s 2016 first-quarter performance report, China National Instrument Network Instrument Corporation reported that its first-quarter operating income was 84.26 million yuan, an increase of 50.52% over the same period of last year.

Engine reliability has always been the focus of the user. It is an important measure to increase the reliability of the engine and improve the consistency of production. So what is the production level of Yuchai Engine?

On April 25, 2016, the experts of the audit team appoint.......

Electrolyte has always been a point of trouble for magnesium-based batteries, but Toyota's researchers may have already tackled the problem for their production methods. Engineers at Toyota Research Institute (.......