trimetallic

例句：

1. 1. The alloy is a key component in the construction of modern bridges.
   这种合金是现代桥梁建设的关键成分。
2. 2.This trimetallic material has been found to be highly resistant to corrosion.
   这种三元合金材料被发现具有很强的抗腐蚀性能。
3. 3.The trimetallic structure is designed to withstand extreme temperatures and pressures.
   这种三元结构设计用来承受极端的温度和压力。