... fourth-order tenstor 四阶张量 fourth-order leveling 四等水准测量 fourth-order transverse deform 第四层横向变形 ...
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6.3小地区范围高程节制测量一、三、四等水准测量(leveling surveying)(一)适用：平坦地区的高程节制测量。(二)精疏密程度要乞降技能要求：
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... 纯四等 pure fourth division 四等水准测量 order leveling ; leveling surveying 四等位基因的 allelic ...
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三、四等水准测量 leveling surveying
本次大赛以个人测绘仪器操作技能、四等水准测量、导线测量等技能为主要竞赛内容。
The competition in their personal mapping equipment operating skills, four leveling, traversing the contents of such skills as the main competition.
通过精度分析，该方法可达到四等水准测量的精度，提出了提高观测精度的相应措施。
The method can achieve fourth-grade leveling survey precision demand by precision analysis, and then brings forward some measure to increase observation precision.
完成了基础埋石、首级四等测量、一级平面导线测量、等外水准测量、图根控制等野外数据采集以及数据编辑工作。
The completion of the foundation buried stone heads, four measurements, a flat wire measurement, substandard level of measurement, map the root control field data collection and data editing.
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