基准面

This study focuses on the palynology and sequence stratigraphy of the Paleogene successions in the Jiyang Depression.

在陆相盆地中，基底沉降、沉积物供给和气候控制着基准面变化和层序发育，而气候的变化造成植被的变化，即造成了植被所产生的孢粉组合的变化，层序地层与孢粉组合有着密切的联系。

Level of vast lakes had been base surface for incision in Early Miocene from (24.1±0.6)Ma to(14.5±0.5) Ma, and lakes and top lacustrine deposits of Wudaoliang Group became base surface for erosion and peneplanation since Late Miocene, which formed planation surface or peneplain of the Tibetan Plateau.

中新世早期(24.1±0.6~(14.5±0.5Ma)以古大湖的湖面为侵蚀基准面，经过隆起区剥蚀夷平和长期湖相沉积，在高海拔环境下形成早期夷平面。

This fixture should be provided with a reference level ing surface, so that it can be kept level as the balance deflects

这种装置应该有一个水平基准面，以便在天平变形时能够使之保持水平。

Generally planer machining datum and edges, in order to single-sided planer processing relative surface pressure and relative edges.

一般以平刨床加工基准面和边，在以单面压刨床加工相对面和相对边。

Based on the analysis of datum cycle markers in logging,drilling and seismic data,3 moderately-long-term(MSC3-MSC5) and 15 short-term cycles(SSC13-SSC27) were identified in the formation using the concept of high resolution sequency stratigraphy.

在对测井、钻井及地震资料的基准面旋回识别标志进行分析的基础上，运用高分辨率层序地层学原理，在下石盒子组识别出3个中期旋回(MSC3—MSC5)和15个短期旋回(SSC13—SSC27)。

Based on the high resolution sequence stratigraphical theory, this paper analyzed the variety of base level cycles and its control on the development and evolvement of Dongying delta. Its high frequency sequence stacking mode is divided into three types.

以高分辨率层序地层学理论为指导，分析基准面旋回变化对三角洲发育演化的控制作用，将三角洲发育过程中的高频层序叠加样式划分为3种类型。

The combined datum correction of tomography inversion with wavefield continuation is beneficial for solving static correction problem under complex near surface condition.

近地表层析反演与波场延拓联合基准面校正的方法有利于解决复杂近地表条件下地震资料的静校正问题。

The grinding surface is also the positioning surface of the workpiece in centerless grinding.

无心磨削中，工件的磨削面就是工件的定位基准面。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。

Following the rising and dropping of sea level, river erosional base have been changed severely, while there are some erosional or siltational processes happened in vertical direction at river mouth and in its low reach, there are also with large scale migration in plain direction.

随海面升降变化，河流侵蚀基准面发生重大变化，河流河口与下游段在发生侵蚀—淤积垂向变化的过程中，平面上亦表现为大范围的迁移。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。