The fingerscan procedure USES an electronic scanner which doesn't contain any ink, liquid or chemical.
指纹扫描将使用电子扫描仪，不使用墨水，液体及化学药品。
2
Test-day photographs will appear on the IELTS test Report Form; and the fingerscan data will be used to confirm the identity of candidates when they return to the test venue for their speaking test.
考试当天拍摄的数码照片将打印在考生的雅思成绩单上，扫描的指纹数据将作为考生参加口试的身份认证。
3
Multiple user names and passwords for different websites are stored by the computer, which fills them in automatically once the user's identity has been verified with a finger-scan.