 |
| English | Chinese |
| mechanical vibration A motion, usually unintentional and often undesirable, of parts of machines and structures | 机械振动 (一种机器和结构部分的运动，通常是偶然的、不合需要的。) |
|
| English | Chinese |
| mechanical vibration A motion, usually unintentional and often undesirable, of parts of machines and structures | 机械振动 (一种机器和结构部分的运动，通常是偶然的、不合需要的。) |