A dynamic model of the recent fault activity is set up. The relations between the formation of Xi 'an ground fissures and the fault activities are discussed.

建立了断裂构造近期活动的动力学模型，并阐明了西安地裂缝的形成与断裂构造活动的关系。

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There are two sets of vertical shearing planes and one set of relaxed fissures dipping towards the river course in the rock mass at the Xiaowan dam site.

小湾岩体存在两组垂直结构面和一组倾向河道的卸荷裂隙。

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Sol 1, as the days are known on Mars, was a busy time for the three-legged lander, which set down Sunday in relatively flat terrain cut by polygon-shaped fissures.

NPR: Phoenix Sends Color Photos of Mars to NASA