“扁头”造句

这种鱼为长圆形, 侧扁, 头大.
The fish is long, round, flat, and has a large head.

扁头发炎怎么办?
How does flat head agnail do?

认为扭振、疲劳裂纹及材质是导致万向接轴扁头断裂的主要原因.
The result shows that torque, fatigue crack and material are the main reasons for the breakage.