在实现这种模式之前，只能通过各种手工、自制电子和基于纸张的系统来完成统计数据和支持材料的收集，其效率比较低。
Prior to implementation of the pattern, statistics and supporting materials were collected less effectively by various manual, homegrown electronic and paper-based systems.
不可数名词是不是单独的对象，并且不可能计数的材料、概念、信息等等。
Uncountable nouns are materials, concepts, information, etc. which are not individual objects and can not be counted.
中子符合计数在核材料认证和管理中有着广泛的应用。
Neutron coincidence counting is widely used in the authentication and management of nuclear material.
应用推荐