传统软件开发人员通常构建应用程序中的一个模块，或典型的三层体系结构中的单个层的一部分。
Traditional software developers generally build either a module within an application or a portion of a single layer in typical three-tier architecture.
广东省水资源综合规划信息系统（WIPIS）便是这种三层混合软件体系结构的一个典型应用。
The Water Resources Integrative Planning Information System (WIPIS) of Guangdong Province is the typical application of such three-tier hybrid architecture.
在各种大型应用软件开发、分布式计算和三层体系结构开发等前沿领域，COM组件技术也正在被大量应用。
Now, the com technology is also largely perfected in the fields of large application software development, distributed compute, three-tier architecture development.
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