You can therefore evolve a spec with new elements and constraints without impacting or forcing a migration of product data.
因此，您可以使用新的元素和约束来使spec发生演变，而不会对产品数据产生影响或实施迁移。
The migration mechanism of elements in stream sediments is the theoretics part of regional geochemical surveys.
水系沉积物元素迁移机理是区域化探方法的理论基础。
On the other hand, the population migration affects the spatial structure of intraregional economic, social and other elements and changes in industrial distribution.
另一方面，人口的迁移变动也影响着区域内部经济、社会等各种要素结构和布局的变化。
Appropriate relative timing of formation of these elements and the processes of generation, migration and accumulation are necessary for hydrocarbons to accumulate and be preserved.
适当的这些要素形成的相关时间及生成作用、运移和聚集作用的过程是烃类聚集和保存所必需的。
During the formation of oil-gas and migration process, some soluble trace elements in the sedimentary organic matter will be separated and dissolved in the associated water.
沉积有机质在生成油气及运移的过程中，部分可溶微量元素会分离出来，溶解在伴生的水中。
The lateral migration of the free thermal convection elements permits the asymmetric basin to be developed in the study area.
自由对流单元的侧向迁移，使盆地形成非对称性。
The essential elements are source rock, reservoir rock, seal rock and overburden rock, and the processes include trap formation and the generation-migration-accumulation of petroleum.
基本要素包括一套烃源岩、储集层、盖层和上覆岩层，作用是圈闭的形成和油气的生成—运移—聚集。
These major elements can be divided into 3 parts as activity, sub-activity and non-activity based on the density of migration in and out.
不同的元素在这一过程中具有不同的地球化学行为，按照其迁入迁出的强度，这些元素可以划分为活动组分、次活动组分和惰性组分3类。
These major elements can be divided into 3 parts as activity, sub-activity and non-activity based on the density of migration in and out.
不同的元素在这一过程中具有不同的地球化学行为，按照其迁入迁出的强度，这些元素可以划分为活动组分、次活动组分和惰性组分3类。
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