The scanning electron microscope had been used for surface observation of the eggs from Aedes albopictus and Aedes aegypti which are difficultly distinguished from each other by optical microscope.
本文对普通光学显微镜难以区分和鉴别的白蚊伊蚊和埃及伊蚊卵，以扫描电子显微镜进行了形态观察。
The winter water bird resources were surveyed in typical wetlands of Henan province from December 1997 to May 1998 by the combination of water surface cruise and bank plot observation.
采用河岸定点观察和水面巡航相结合的方法，于1997 ~ 1998年调查了河南省典型湿地冬季水鸟资源。
Fractured surface scanning observation showed that the breakage in specimen resulted from the corrosion tunnels generating along slip planes and being torn by tensile stress.
断口扫描观察表明，试样破断是由于腐蚀隧洞沿滑移面生长并受到拉伸撕裂所致。
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