hydraulic cylinder seal

• 液压缸油封

hydraulic cylinder seal的用法和样例：

例句

1. Inspect the seal for damage or cracks.
   检查油封是否损坏或开裂。
2. Apply a light film of engine oil on the vibration damper hub contact surface of the seal.
   在减震器毂油封接触表面上涂一层引擎机油薄膜。