The Beijing Fundamental Bench Mark (BFBM) is an important reference datum in the elevation control network in China.
北京水准原点是我国高程控制网中的一个重要基准点。
The coordinate reference datum on which precision GPS survey is based, is ITRF International Terrestrial reference Frame that IERS offers.
高精度GPS测量所依据的坐标参考基准，是由IERS所提供的ITRF国际地球参考框架。
This paper approaches the reference datum of GPS and electronic map from concepts model, and analyses the basic relations of coordinate transformation.
从概念模型的角度探讨了GPS和电子地图的参考基准问题。
The method includes forming physical reference datum directly on an individual silicon die module, and positioning the individual die modules on a temporary holder.
该方法包括直接在单独的硅裸片模块上形成物理参考基准，以及将该单独的裸片模块定位于临时固定器上。
The temporary holder includes an alignment tool and singulated die are placed onto the temporary holder by abutting the physical reference datum against the alignment tool.
该临时固定器包括对准工具，而切割的裸 片通过将物理参考基准对着对准工具对接而放置在临时固定器上。
Some key techniques, such as attitude correction, quality control of GPS height, transformation of vertical reference datum and extraction of tidal level, are studied in detail.
这些关键问题主要有姿态改正、GPS高程质量控制、垂直基准转换、基于信号的在航潮位提取。
The method includes locating a focal point (24) of a laser (12) relative to at least one reference datum (14) of a workspace (16), the focal point (24) being where the laser (12) produces machining.
该方法包括相对于工作空间(16)的至少一个参考基准面(14)定位激光器(12)的焦点(24)，所述焦点(24)位于所述激光器(12)进行加工的位置。
The feeling process we term "experiencing" also occurs in an individual's awareness without direct reference to it as a felt datum.
我们称之为“体验过程”的感觉过程，也发生在一个人没有直接指涉作为一种感知数据的意识中。
Besides of uniform spatial reference and positioning datum, modern war must unite all the geographic spatial information needed by all arms of services to a organic integer scientific and reasonably.
除了要求有统一的空间参照和定位基准以外，还必须将诸军兵种所需的地理空间信息科学合理地统一在一起，形成一个有机整体。
The expressions of cutting regimes and reference cutting datum are given. The limitations of self-rotary cutting tool in use are presented.
给出了切削用量的计算公式和参考数据，指出了滚切刀具的局限性。
Through datum regression analysis and comparing, the HSC strength curve of Hebei province is established, and as a reference to national HSC curve.
通过对试验数据的回归分析比较，提出了河北省高强混凝土测强曲线，并为建立全国高强混凝土测强曲线提供了参考依据。
However, in order to compare data between Wells it is important to have a valid, area wide reference for comparison. This is the permanent datum level.
但是为了对不同的井进行比较，需要确定一个区域的有效的永久深度参考面。
Operator places core (s) onto feed table against datum reference points using print grip and side-lay edges.
操作员将芯板上料至进板台，通过校对印刷网点和横针标数据基准点。
Operator places core (s) onto feed table against datum reference points using print grip and side-lay edges.
操作员将芯板上料至进板台，通过校对印刷网点和横针标数据基准点。
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