传质传热
mass and heat transfer
transfer quality and heat
大众传播媒介
Mass media
popular communication media
mass media of communication
接近使用传播媒体之权利
right of access to the media
空媒传播疾病
airborne transmitted diseases
同步均质传播．
synchronous homogeneous propagation
蚜媒传播及生态
aphid transmission and ecology
(改进)环形反向传播网络
improved) circular ba ck-propagation network
使用与满足传播理论
The Uses and Satisfaction Communication Theory
《生命知识》传播
spreading fact about life