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1·An united space datum line has been given.

给出统一的空间基准线。

2·A line of punch positions parallel to the Y datum line of a punch card.

基准线平行，在地平面或者基准平面上。

3·The vertical datum line set up by this system can be used to monitor deformation of the various building.

用这种垂准系统建立的高度较大的垂准基线，可以用于超高层建筑物施工和变形监测。

4·Results Femoral shaft edges were obtained from both frontal and lateral X ray images successfully, and then datum line was se…

结果获得符合要求的骨骼边缘，完成股骨骨干段基准线的三维空间显示。

5·Automatic adjustment of datum line, Automatic gain control, digital filter and data compression are adopted in it, and it can make long-term dynamic record.

该装置采用了自动基线调整，自动增益设置，数字滤波，数据压缩等技术，可进行长时间动态记录。

6·The datum line and mainly three profile height parameters of surface roughness are briefly introduced and the operation principle and system structure of AFM.

简要介绍了评定表面粗糙度参数的基准线及其主要的两个轮廓高度评定参数，详细阐述了重庆大学研制成功的一种高精度原子力显微镜——AFM。

7·Feasibility of a kind of guiding datum line of linear motion in large distance using strained wire is analyzed. The working principle of the system is presented.

对以张力金属丝作为大长度直线运动导引基准的可行性进行了分析，给出了系统的工作原理。

8·Both nature upper eyelid goffer and upper vessel net of margo palpebrae were used as a datum line. According to the base line, double eyelid plasty was performed.

方法根据上睑缘血管网上缘及自然上睑体表皱褶为标准设计650例重睑手术。

9·The feasibility of taking strained-wire as navigating datum line of dummy guide-way was analyzed in laser length measurement system, and working principle of the system was presented.

对以张力金属丝作为激光测长系统虚拟导轨导航基准的可行性进行了分析，给出了系统的工作原理。

10·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。

基准线

1·The datum line and mainly three profile height parameters of surface roughness are briefly introduced and the operation principle and system structure of AFM.

简要介绍了评定表面粗糙度参数的基准线及其主要的两个轮廓高度评定参数，详细阐述了重庆大学研制成功的一种高精度原子力显微镜——AFM。