ball bearing with seals

例句：

1. 1. The new machine usesa ball bearing with seals to ensuresmooth operation.
   这台新机器使用带密封的球轴承来确保平稳运行。
2. 2. Theengineer carefully inspected the ball bearing withseals before installation.
   工程师在安装前仔细检查了带密封的球轴承。
3. 3. Theball bearing with seals is crucial formaintaining the machine's accuracy and durability.
   带密封的球轴承对于保持机器的准确性和耐用性至关重要。