对于难溶的黑色金属，本文介绍了一种快速新颖的钒钛吸光光度连测方法。
For analysis of difficult-dissolved ferrous metal, this paper introduces a quick and new measuring method-absorption spectrophotometry by vanadium-titanium continuous measurement.
测区的控制测量及与国家三角点的连测方法，成为影响工作进度、保证测量精度的关键。
The method of connecting observation between conventional control points and National Triangulation Station would affect the working process and mapping precision.
为保证连测的像控点精度的可靠性，本文提出了按交会基线长度和交会图形强度，增加适当测回数，提高测角精度的方法。
To ensure the reliability of the precision of photograph control points by continual survey, a method is recommended that increases the appropriate numbers of the observation set and promotes …
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