这些数学问题需要通过解矩阵来完成。

These math problems require solving ___matrices to complete.

学校为年轻科学家提供了良好的发展环境。

The school provides a supportive ___environment for young scientists to grow.

工厂使用金属模具来铸造这些零件。

The factory uses metal ___matrices to cast these parts.