Extrusion System: frequency variable motor, cycloidal pin gear speed reducer and high qualitynitrifiedfeed cylinder screw.挤出系统: 变频调速电机 、 摆线针轮减速箱加优质氮化料筒罗杆.It was so still you could have heard a pin drop.这是那样的寂静, 连一根针落地的声音...
他喜欢与那些智力水平不如他的人共处。He preferred the company of those who were intellectually inferior to himself.当然，识字和智力是两码事。Of course, literacy isn't the same thing as intelligence.熊非常好奇，必须不断地给予其智力上的刺激。Bears are very inquisitive a...