“pulley system”可以造什么句，pulley system造句

Flexor tendon lacerations have historically not been repaired by emergency providers due to the extensive pulley systems involved and possibility of loss of mobility from scarring.

Why It's Innovative: Instead of separating in the middle like a drawbridge, the Pont Gustave-Flaubert's deck is lifted straight up by a butterfly-shaped pulley system so tall ships can pass through.