Soil nutrient status and fertilization techniques in winter jujube garden

Four fertilizers of crops

It is easiest to crack the birthday password when bank cards are stolen frequently

Future insights into machine tool development

Light vertical multi-pole centrifugal pump features introduced

Non-stop clamp for shaft turning

Design and calculation of inclined hole drilling template

Induction heating in the forging industry

Shengli Oilfield automatic extraction of oil to improve low-production wells pumping

China's doubly-fed asynchronous wind turbine converter successfully developed

Dual CCD high precision line position real-time monitoring system

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