Grainaln.钒钛铝铁合金grainn.谷物；谷类；微量；颗粒；纹理；格令v.形成(颗粒)；(用谷物)喂养grain- production粮食生产grain size analyser粒速分析仪grain security line粮食安全线grain boundary flow晶界流变grain boundary slip晶界滑动grain filling stage灌浆期grain supply centre粮站grain fragmentation晶粒碎裂grain testing sieve谷粒试验筛Grain Size of Loess黄土粒度