The development and transfer of feed, slaughter and processing technologies have increased safety and efficiency, but favour large-scale units rather than small-scale producers.
饲养、屠宰和加工技术的开发和转让提高了安全性和效率，但更有利于大规模的养殖场而不是小规模的养殖者。
A powder container, typically cone shaped design to force powder by gravity to feed a gun or transfer system.
一个粉末容器，典型的锥形设计为了使粉末以重力的方式进入喷枪或输送系统。
Radiation between cell tube and air feed tube and heat transfer by convection and conduction was also included in this model.
在传热模型中，除考虑传导和对流换热外，也考虑了电池和空气进气管之间的辐射换热。
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