bulk transition region

例句：

1. 1. The bulk transition region is a critical area for the development of new technologies.
   大块过渡区域是发展新技术的关键区域。
2. 2. The scientists are studying the bulk transition region to understand its effects on the environment.
   科学家们正在研究大块过渡区域，以了解其对环境的影响。
3. 3. The bulk transition region is a place where different cultures come together and blend.
   大块过渡区域是一个不同文化交汇融合的地方。