分析比较窝眼筒和碟片精选机的结构与性能特点
参考答案：窝眼筒精选机其圆筒内壁上均匀分布圆形窝眼，它绕自身轴线作旋转运动，物料从一端喂入，厂区小于窝眼的物料易进入，到较高位置后落入盛料槽推出，而长粒不易进入窝眼，即使进入业会由重力作用掉回料流内.由筒底从另一端推出.碟片精选机由进料装置\碟片组\机壳\输送螺旋和传动部分等组成.物料从进料口进入在机内堆积一定深度，物料依靠碟片轮辐上的叶片向前推进，由料口送出，短粒由碟片窝眼带至一定高度后从窝眼内滑出落至卸料口内排出机外.
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mother takes good care of you as much as possible. 1______. When you are ill, she stops her work right now to look after you day and night but forgets about herself. 2______, she feels very happy. When you are old enough to go to school, mother still looks after you all the time. On cold winter days, she always tells you to put on more clothes. 3______. When you hurry to leave home for school with little breakfast, she always feels worried about you at home. She usually knows about your study and spends much money on your school things. When you do well at school, you will see the bright sweet smile on her face. 4______, not to receive. What true love it is in the world! We will remember mother love forever! |