The MBBR process, first developed in Norway about 25 years ago, is now a mature and proven compact wastewater treatment technology. Like the activated sludge process, the MBBR process takes full advantage of the entire reaction cell for biomass growth. This article focuses on MBB…

When we set the ascent and descent of the lifting column, the time should not be too long. After the equipment is lifted into position, it must be ensured that the power is cut off, otherwise it will cause the motor to stall and be damaged. Lifting column lifting cannot be performed frequentl…

In order to fully enhance the service awareness and service quality of China Petroleum Lubricants Co., Ltd., enhance market support capabilities, and strengthen links with distributors, China Petroleum Lubricant Company Beijing Factory held a major distributor on Decembe…

Dongfengguo five front four rear eight aluminum alloy tanker, using D916 high-top imitation Tianlong dangerous chassis, Dongfeng Cummins ISL9.5-315E51A engine, wheelbase 2050+4250+1400, gearbox 9JS150T-B, 295 vacuum tire , 5 tons front axle / 13 tons rear axle, 280 double girders, air s…

When multiple wireless APs are deployed, the frequency band is usually set. The main reason is that if two adjacent APs use the same frequency band, they may cause the same frequency interference or wireless signal conflict, causing instability in the WiFi network. So how do you choose the fr…

The only production environment for agriculture is green, so it is impossible to provide green and healthy agricultural products for everyone. In today's concern for food safety, the development of green agricultural production has become a trend and trend, and for the preven…

The reporter learned from Hefei Power Supply Company, as of March 18, the company in the city a total of 2000 Taiwan's experimental application of Internet of Things SIM card to achieve electricity information collection terminal based on the Internet of things.

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Carbon dioxide is an important raw material for photosynthesis and an indispensable substance in the growth of vegetables. Therefore, in greenhouse cultivation, supplemental carbon dioxide has become an important means to increase the quality and yield of greenhouses. However, ca…

[China Instrument Network Instrument R&D] Recently, members of the “Automatic Weight Detection Device” of the Institute of Mechanic of Xinjiang Institute of Surveying and Measurement have finally found the best gripping position through continuous groping and continuous fine-t…