采用自行研制的加载装置，配装在光学体视显微镜下，观测了珊瑚砂土在加载过程中微结构的变化及颗粒滑移的全过程。
In this paper, the variation of microstructure and the complete process of grain slide during loading of the coral sand are observed with the optical microscope and the self-developed loading device.
每当必要时，应该进行加密观测以便获得这一大气事件的细微结构的资料。
Whenever occasion arises intensive observations are to be done to get the information on the fine structure of the atmospheric event.
方法：取健康雄性大鼠，电镜观测左心房和左心室细胞超微结构的形态和定量变化。
Methods: Ultrastructural morphology and quantitative changes of left atrium and left ventricle of male rats were observed by electron microscope.
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