the breakage of corn in bulk grain handling system is a severe problem that reduce the grain grade and quality.
在散粮输送系统中玉米的破碎是一个引起降等的严重问题。
the results show that there are higher grain grade and hardness, lower dilution and better performance of resistance to abrasion, wear and anti-erosion in the laser cladding layer.
激光熔覆层中的组织晶粒度和硬度高,稀释率低,抗摩擦磨损和抗腐蚀性能好;
the water permeability of the double grain grade aggregate is obviously better than that of the single one.