The following examples of oil and gas fields in distributary and delta- fringe sand bodies range in age from late paleozoic to middle cenozoic.
下面所列举的是分布于分流和三角洲前绿砂体的油气田的例子，在地质时代上从晚古生代至中新生代。
When the base level descends, range of distribution increases and new fan-delta lobes appear.
基准面下降，展布范围增大，并出现新的扇三角洲朵体。
Observability analysis shows that the integration system, in which only GPS pseudo range and delta pseudo range are the observable, can not assure favorable observability of the attitude error angles.
通过对可观测性能分析，得出了这样的结论：仅用伪距和伪距变化率为观测量的组合系统对姿态角误差的可观测性较差。
As the main body of the folk songs in the Yellow River Delta, ditty covers a wide range of lyrics and strong artistic flavor.
小调是黄河三角洲民歌的主体部分，反应的内容极其广泛，具有较强的艺术化特征。
As the main body of the folk songs in the Yellow River Delta, ditty covers a wide range of lyrics and strong artistic flavor.
小调是黄河三角洲民歌的主体部分，反应的内容极其广泛，具有较强的艺术化特征。
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