Despite these challenges, two vaccine candidates have advanced to evaluation in human subjects in countries with endemic disease, and several potential vaccines are in earlier stages of development.
尽管面临挑战，两种登革候选疫苗已在登革热流行国家进行后期临床评价，一些其他候选疫苗尚处在较为初级的开发阶段。
In system development, a model suitable for evaluation of system design, performance, and production potential.
在系统开发中，适用于系统设计、性能以及生产潜力评估的一种系统模型。
Paper based on the national mineral resources potential evaluation project in-depth describes the design, development process of management system.
本文从项目出发深入阐述了全国矿产资源潜力评价数据模型管理系统的设计、开发全过程。
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