农家肥由于流动性差，输送时需很大的力，如何选择合适的输送机构的几何参数和运动参数来降低输送功耗，提高均匀性尤为重要。
The mobility of farmyard manure is so poor that a great strength is needed to carry the manure , therefore , how to lower the power and enhance the uniformity becomes particularly important.
探讨了沥青混合料流层流和紊流流动型态的界定及流动特性；分析了沥青混凝土摊铺机螺旋分料器的输送机理和沥青混合料粒料在螺旋布料器作用下的运动规律。
Based on the physical characteristics of bituminous mixture in the process of paving, hydromechanics is put forward to study the bituminous mixture flow's movement feature in the spiral-feeder.
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