Two signal processing methods, one based on analog filters, the other based on digital lock-in amplifyingtechnique, are developed and analyzed.
设计了基于模拟滤波器和基于数字锁相放大技术的两种红外气体传感器的信号处理方法。
2
Use of most molecular marker systems depends on the polymerase chain reaction (PCR), which is an important technique for amplifying specific DNA sequences.
大多数分子标记体系的利用都取决于聚合酶链反应（PCR），这是一项扩增特定DNA序列的重要技术。
3
As a technique for amplifying nucleic acid in vitro with high sensitivity, specificity, swiftness and convenience, PCR has been applied widely in the aspects of medicine and biology nowadays.
P CR是一种体外核酸扩增技术，具有敏感性强、特异性高、快速、简便等优点，在医学、生物学等领域中得到了广泛应用。