“surface tillage”的概念、定义、翻译、参考文献-科学参考

单词	surface tillage
释义	surface tillage Encyclopedia 农学表土耕作释 surface tillage表土耕作在基本耕作措施基础上采用的对土壤范围、土层深度、作用强度、时效影响相对较弱的土壤耕作措施。又称次级耕作。
随便看	negative permeability materials negative permittivity materials negative phototropism negative plate negative platemaking negative Poisson's ratio material negative polarity items negative polarity machining negative polynomial distribution negative-positive photographic system negative pressure negative pressure injection negative pressure method for deposit negative-pressure pulverizer with intermediate storage bunker negative pressure region negative pressure suction appliance negative priming effect negative probability negative proposition negative punishment negative quadratic differential negative real axis negative real number negative recurrent state negative refraction

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。