calcium fluoride substrate

例句：

1. 1. The new material has a better corrosion resistance than the traditional one.
   这种新材料的耐腐蚀性比传统材料更好。
2. 2.The engineer used this substrate to build a bridge that could withstand heavy traffic.
   工程师使用这种底板建造了一座能够承受重交通压力的桥梁。
3. 3.The scientist found that the calcium fluoride substrate improved the device's performance significantly.
   科学家发现，这种钙氟化物底板显著提高了设备的性能。