Software extensible slot means to pre_arrange some stru ct ures in finished software products for function extension, in order to maintain a nd update the software present.

软件扩展槽就是在软件成品中预留便于扩展的结构，目的是便于软件维护和升级。

The structural model should be built in 4 steps with the axial surface analysis as the basis, the fault-fold geometric analysis as the key, the balanced idea as the guidance and the stru.

主要遵循4个基本步骤，轴面分析是基础，断层褶皱形态分析是核心，平衡观念是灵魂，构造复原是手段。

The synthetic testing system for power transformers is introduced, in which the virtual in stru mentation technology, component software technology and digital signal process technology are used.

介绍了采用虚拟仪器技术、组件化软件技术和数字信号处理技术的电力变压器综合检测系统。