Compared to other conventional sample extraction techniques, its advantages were explained.
阐述了它与其它传统样品制备方法相比较的诸多优点。
The Research of Sample Extraction and Image Sample Database for High Resolution Remote Sensing Image;
研究了提高光学仪器与雷达系统的分辨本领的理论与方法。
The typical variable factors are stability of the test solution, times and duration of sample extraction, and so on.
典型的变动因素有：被测溶液的稳定性，样品提取次数、时间等。
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