It is difficult to determine the effects of straw-break surface on the structure of drifting sand current and the wind speed profile in the sand-moving region due to the complexity of straw-breaks.
由于草方格构成的下垫面复杂多变，其对风沙流结构与风沙活动层风速廓线的影响很难确定。
Scanning electron microscopy was used in characterizing film's break surface and results showed that section without cross-linking modification was smooth, and the modified section was very rough.
通过扫描电镜对胶膜断面进行了表征，未经交联改性的断面很光滑，而经改性后的断面就很粗糙。
Scanning electron microscopy was used in characterizing film's break surface and results showed that section without cross-linking modification was smooth, and the modified section was very rough.
通过扫描电镜对胶膜断面进行了表征，未经交联改性的断面很光滑，而经改性后的断面就很粗糙。
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