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...
Widespread epidemics in birds increase opportunities for human exposure.禽类中的广泛流行增加了人类暴露的机会.The epidemics usually stop when the summer rainy season begins.时疫通常在夏季雨季开始时停止传播....the protection of mankind against the forces o...
This paper introduces a rarely seen method of describing with diametral distance.本文介绍了一种鲜为人知的用直径距离描绘椭圆的方法.Meshing spur gears must have the same diametral pitch.互相啮合的直齿圆柱齿轮,必须具有相同的径节.Diametral pitch : the number of teeth ...