through; by way of; after; via
トンネルを経て、海が見えた。
After passing through the tunnel, the sea became visible.
数回の試作を経て、最終製品が完成した。
After several rounds of prototyping, the final product was completed.
長い下積み時代を経て、彼は人気俳優になった。
After a long period as an unknown, he became a popular actor.