They then used a 3-D bioprinter to build an intricate structure that mimics real corals.

他们随后用3D生物打印机打造了一个复杂结构，模仿真实的珊瑚。

Researcher Sarah Grace Dennis says new technology, such as the Palmetto bioprinter, advanced the process considerably.

研究员萨拉·格蕾丝·丹尼斯说Palmetto打印机等新技术对研究活组织有很大推动作用。