level-meter的用法和样例：
词汇搭配
- transmission level meter 传输电平表
- float ball level meter 浮球液面计
- modulation level meter 调制电平测试器...
- sound-level meter 音级仪,音级计...
- volume level meter 音量电平表
- level meter 电平表(水平仪...
- noise level meter 噪声计
- selective level meter 选频电平表
- digital level meter 数字式电平表...
- program level meter 节目信号电平表...
- sound level meter 噪声计,声级计...
- standard level meter 标准电平表
- audio level meter 声频电平表
- transistor level meter 晶体管电平表...
- speech level meter 话音电平表
- vibration level meter 振级计
- displacer level meter 沉筒液面计
