saw-toothed造句

1、Their backs were battleship gray topped with a saw-toothed line of small yellow dorsal fins.
它们的背部是军舰的灰色，最上方是呈锯齿状的黄色背鳍。

2、He believes "a saw-toothed advance" will characterize a recovery this autumn.
他认为今年秋季的复苏将以“锯齿式前进”为特征。

3、The stability of saw-toothed thread implants is better than "V" thread.
锯齿型螺纹种植体的稳定性比三角型螺纹好。