On single target plane detection technique, it provides difference detection and projection detection;
基于单目标飞机检测技术，提出了差分检测法和投影检测法；
A laser generation and optical difference detection method of surface acoustic waves (SAW) is used to study the influence of laser source on SAW.
利用激光激发声表面波及光差分技术研究激光源对声表面波的影响。
A laser generation and modified optical difference detection method of SAW for studying the characters of thin films deposited on substrates is introduced.
利用激光激发声表面波及改进的光差分检测技术，研究沉积在基片表面的薄膜样品的特性和参量。
Based on the sensing mechanism of Coriolis mass flowmeter and analyzing signal spectrum in actual working, the novel applied method is devised for phase difference detection.
基于科氏质量流量计的工作机理和实际工作情况下的信号频谱分析，提出了切实可行的相位差检测新方法。
An optical apparatus is disclosed which can reliably form AF images and split the AF images to provide excellent focus detection performance in the phase difference detection method.
公开了一种光学装置，该光学装置在相位差检测方法中能可靠地形成AF像并分离该AF像以提供优良的焦点检测性能。
An optical apparatus is disclosed which can reliably form AF images and split the AF images to provide excellent focus detection performance in the phase difference detection method.
公开了一种光学装置，该光学装置在相位差检测方法中能可靠地形成AF像并分离该AF像以提供优良的焦点检测性能。
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