“变量作业”的概念、定义、翻译、参考文献-科学参考

单词	变量作业
释义	变量作业 Encyclopedia 农学﹝农业电气化与信息化工程﹞释 variable rate application变量作业利用安装有计算机、DGPS等先进设备的农机具，根据所处的位置及农田小区作物产量和影响作物生长的环境因素（如土壤结构、地形、植物营养、含水量、病虫草害等）实际存在的空间和时间差异性信息，自动调节农业物料投入速率的系统。又称变量实施、变量投入。是精准农业的核心技术环节。
随便看	railway signal railway signal indication railway signaling railway signaling power supply equipment railway signaling reliability railway signaling vital relay railway sound barrier railways passenger car equipment railway station railway station and terminal railway structural deformation survey railway subgrade engineering railway subgrade maintenance railway subgrade non-destructive detection railway switch transition equipment railway tank car railway tanker railway technical station railway terminal railway ticket railway timber transportation railway time synchronization network railway track railway track maintenance and renewal railway traction network

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。