active length的用法和樣例：
例句
- The results show that the increase of the gap length may decrease the maximal seismic load applied on the restrainers.
結果表明，不工作長(cháng)度的增加可以降低防止落梁裝置承受的最大地震荷載。 - Analysis of the handing method and the electric method for measuring work length of root canals.
手感法和電測法確定根管工作長(cháng)度的研究。
