共 50 条
- [26] Development of a portable instrument for measuring soil water content with GPS ACTUAL TASKS ON AGRICULTURAL ENGINEERING, 2005, 33 : 401 - 407
- [28] Design of portable near infrared soil nutrient measuring instrument OPTIK, 2015, 126 (02): : 230 - 233
- [29] Multipoint infrared telemetry system for measuring the piston temperature in internal combustion engines Journal of Beijing Institute of Technology (English Edition), 2002, 11 (04): : 346 - 349