确保泵油足够的油，并且所有驱动部件都紧固。
Ensure that the pump has adequate oil and that all drive components are tight.
控制部件、驱动部件、传动部件为全模块组合，安装简单方便。
The control part, the driving part and the transmission part are combined into a whole module, and the installation is simple and convenient.
从我最初的帖子里，有人推测昂贵的HD 595一定使用了更贵的驱动部件。
Quite a few people speculated in my Original thread that the more expensive HD595 headphones must also be using a more expensive driver.
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