车辙试验改进方法
rutting test improving method
改进试验和调整
modifications testing and adjusting
油桃套袋技术改进试验
Improvement of nectarine fruit bagging techniques
改进型车辙试验
modified wheel tracking test
改进正交试验法
improved orthogonal experiment method
改进直剪试验
improved direct shear tests
试验方法和理论的改进
improvement of the experimental method and theory
回归正交试验试验
regression-orthogonal design
调试改进
Trial run and improvement
debug and improve
改进试算法
improved iterative technique
改进验证
modification and validation