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1·While housing mortgage loan has asset scale and good quality, which suits to be the point of tangency into asset securitization of our country.

而住房抵押贷款所具备的资产规模和良好质量，也十分适合作为我国资产证券化的切入点。

2·The paper takes teaching environment as point of tangency, gives an thorough analysis on the constructing element of teaching environment and educational equipment as well as their mutual relations.

本文以教学环境为切入点，对教学环境与教育装备的构成要素以及相互关系进行了深入分析，并从系统的角度出发，提出了构建教育装备系统的研究方案。

3·The tangency point of Bottom Hole Assembly is located at where the drill string just touches the wall of the borehole, and the contact force is zero here.

在计算底部钻具组合的受力和变形时，以前一般都是按弯矩为零的条件来确定其上切点的位置。

4·Aiming at the problem of tangency point reorganization of digital curve, this paper proposes a digital curve tangency point detection technology based on rotate-angle accumulation.

针对数字曲线的切点识别问题，提出一种基于转角累加的数字曲线切点检测技术。