grainedadj.有纹理的；有颗粒的；粗糙的动词grain的过去式和过去分词.grainn.谷物；谷类；微量；颗粒；纹理；格令v.形成(颗粒)；(用谷物)喂养grain boundary phase晶界相grain size of quartz石英粒度grain pressure index耕地压力指数grained stone facing粗粒石面grain boundary crack晶界裂纹Grain filling period灌浆期grain forward market粮食期货市场grain oriented steel晶粒取向钢grain color selector谷物色选机Grain cleaning sieve清粮筛