美国官员说，他们一直密切注视叙利亚在黎巴嫩边界一带的军事活动。
S. officials say they have been monitoring Syrian military activity along the Lebanese border.
山西断陷带的断层形变速率最高，是华北地区最重要的活动块体边界；
The Shanxi graben zone has the largest fault deformation rate showing it is the most important block boundary of North China.
从各边界带上强震活动的频次和单位时间、单位长度的地震应变能释放出发，讨论了各活动地块边界带的强震总体活动水平；
The seismicity levels on the active tectonic block boundaries are discussed considering the large earthquake frequency and the released strain energy in unit distance and time.
现在构造活动与地震活动似均逐渐向南移到主边界大断层一带。
It seems that the recent tectonic and earthquake activities gradually move towards the south reaching the great fault of the main boundary.
葡萄花油层断层具有密集成带特征，且密集带边界断层多为成藏期活动的油源断层；
Putaohua reservoir fault have a dense like banding characteristics, and more boundary fault of dense banding are oil source fault activities for the accumulation period;
葡萄花油层断层具有密集成带特征，且密集带边界断层多为成藏期活动的油源断层；
Putaohua reservoir fault have a dense like banding characteristics, and more boundary fault of dense banding are oil source fault activities for the accumulation period;
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