overlapping spectra meaning in English

重叠谱

In the last part , the differential pas technique , which combines the pas technique with the differential spectrum , overcomes the defect from the two techniques , making it has the both advantage of the pas technique , which is suitable for the measurement of the heavy diffusion > opacity sample , and the advantage of the differential spectrum which is capable of differentiating the overlap spectrum and shoulder peak , is present
第三部分提出导数光声光谱技术，将光声光谱技术和导数光谱结合起来，使导数光声光谱技术同时具有光声光谱技术的可适用于强散射，非透明的样品测量和导数光谱可分辨重叠光谱，分辨肩峰的优点，又克服各自的缺点。