在20世纪30年代初，大多数影院都安装了新的音响系统。
In the early 1930s, most theater owners installed new sound systems.
到目前为止，中国已经完成了北斗卫星导航系统的第三代网络系统，这是国家空间研究工作一个新的里程碑。
So far, China has completed the third generation network of China's BDS. It was a new milestone in the nation's space research work.
新一代IT系统需要支持新中间件和新兴应用程序架构的软件开发能力。
The new generation of it systems requires software development capabilities that support new middleware and emerging application architectures.
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