In the detection of lines in engineering drawing vectorization, the method of best coinciding was adopted to attain the according standard line equation.
对工程图纸矢量化中线条的检测，采用最佳拟合的方法，得到了线条对应的标准直线方程。
The paper discusses how to ascertain detection standard, improve detection method and servicing technique, and how to perfect management system.
本文就如何确定适合本地的检测标准、改进检测方法、提高维修技术及完善管理体系等有关方面作初步探讨。
However, up to this date, there is no universal standard method for detection, evaluation and design for durability of HPC.
但迄今为止，对HPC耐久性的检测、评价、设计一直没有统一的标准。
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