Gear drive is the most fundamental in mechanical drives.
齿轮传动是机械传动中最基本的传动方式。
Positive mechanical thrust drives plug into body seats to ensure tight bi-directional line seal.
积极的机械推力驱动阀塞进入阀体阀座馁，确保紧密双向管路密封。
By definition, all mechanical hard drives will eventually fail.
被定义，所有的机械硬式磁盘机将会最后失败。
By definition, all mechanical hard drives will eventually fail.
被定义，所有的机械硬式磁盘机将会最后失败。
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