Step 4: Look at the next horizontal line, which is the head line.

第四步：看下面一条水平线，也就是智慧线。

Step 4: Look at the next horizontal line, which is the head line.

第四步：看下面一条程度线，也就是伶俐线。

Meanwhile, the tube water head line drawn by the computer makes the graphic result clear.

同时，运用计算机绘制出水头线，使图形结果一目了然。

Two Critical concepts involved in direct current ice-melting technique of high voltage over head line, the least ice-melting current and the Max allowed current was presented.

提出了架空输电线路直流融冰的两个重要参数：最小融冰电流和最大允许融冰电流的概念。

In this paper, the mechanism of producing grip - force between the press - connect - tubes in the over - head line has been analyzed based on the metal press-distortion theory.

本文以金属压缩变形理论为基础分析了架空导地线压接管压后产生握着力的机理。