emulation

她的绘画技巧的进步来自于对大师作品的模仿学习。

The improvement in her painting skills came from her ___emulation of the masters' works.

通过模拟技术，我们可以在新系统上运行为旧平台设计的软件。

With ___emulation technology, we can run software designed for old platforms on new systems.