尺子的單詞怎麼寫好看

Distortion Phenomenon Analysis of 3m Ruler Used in the Test of Hot Surface Smooth

3m直尺用於熱鋪層平整度檢測時的'熱變形現象分析

The teacher came in and a ruler was in his hand.

老師走進教室，手裏拿着一把直尺。

Take out a ruler draw a line.

拿出直尺，畫條線；

Proportional servo valve, grid ruler and CNC machine tool

伺服比例閥、光柵直尺與數控機牀

At breast height, measure the trunk diameter by a ruler.

在胸部高度的位置，用一把直尺量度幹徑。