Rolling bearings codes describe the inner diameter, diameter series, size series, and type of the bearings, which are generally approximately five digits. The code is composed of basic code, article code, as well as front code.…
A large-scale manned demonstration application for intelligent internet-connected vehicles was launched in Shanghai, and Didi Chuxing opened its self-driving service to the public for the first time.…
The negative charge nitrogen vacancy (NV − Center) in diamond has attracted extensive attention due to its versatile role in quantum nano science technology. Although the electrical spectral properties of these point defect ensembles have…
nano-bismuth powder has broad application prospects in metallurgical additives, lubricant additives, catalysts, medicines, and semiconductor raw materials.…
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