- 級孔式缺陷指示器;級孔式圖像質(zhì)量指示器
- image quality indicator: 圖像質(zhì)量指示; 像質(zhì)計; 象質(zhì)顯示器
- image quality indicator sensitivity: 像質(zhì)指示器靈敏度; 象質(zhì)指示器靈敏度
- image quality indicator （iqi）: 像質(zhì)計
- duplex-wire image quality indicator: 雙線像質(zhì)指示器; 雙線象質(zhì)指示器
- step-by-step call indicator: 步進呼叫指示器
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