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1·Select planar surface or datum plane.

任意选择一个平面。

2·The datum plane of system is made certain and its veracity is proven by experiment.

确立了检测系统的基准，并就系统基准的准确性进行了验证实验。

3·With the rise and fall of datum plane, sedimentary centre of sand stone moved towards sediments source or basin.

并且随基准面上升和下降，砂岩沉积中心分别向物源和盆地方向迁移。

4·It introduces the perspective system feature in different positions between tableau and datum plane inclination.

研究了画面与基面处于不同位置时的透视体系特征。

5·However, similar characteristics of deep karst below the present drainage datum plane are less studied up to now.

现代排泄基准面以下深岩溶的类似特征则至今研究尚少。

6·Perpendicularity - is the condition of a surface, axis, or line, which is 90 deg. From a datum plane or a datum axis.

垂直度-条件是表面，轴，或线，这是90度的基准平面或基准轴。

7·In order to improve the manufacturing technology of rotary milling jigs, a datum plane was added so as to raise the manufacturing precision and reliability.

原回转铣夹具制造精度较低，现在增加一处工艺基准面，大大提高了它的制造精度和可靠性，并为夹具的使用提供了一处校对基准面，使得叶片型面铣加工更为可靠。

8·With the idea of the datum plane linking the two shops at a higher level, the shops are actually conceived as separate and independent entities on the ground.

基准面在更高的层层连接这两个商店的概念，而在地上作为单独的实体商店。

9·The present paper deals with the errors existent in routine datum plane statics under the condition of complex topography as well as the cause for the errors.

本文从理论上论述了复杂地形条件下常规基准面静校正和存在的误差以及存在误差的主要原因。

10·It is concluded that the accumulative bauxite zoning resulted from the of the landform dynamic equilibrium caused by the action of the primary bauxite datum plane.

探讨了堆积型铝土矿分带的形成机制，是原生矿层导致地貌动力平衡变化的结果。

基准面

1·The present paper deals with the errors existent in routine datum plane statics under the condition of complex topography as well as the cause for the errors.

本文从理论上论述了复杂地形条件下常规基准面静校正和存在的误差以及存在误差的主要原因。

2·However, similar characteristics of deep karst below the present drainage datum plane are less studied up to now.

现代排泄基准面以下深岩溶的类似特征则至今研究尚少。