基本解釋[機(jī)械工程]輕鉛筆線英漢例句雙語(yǔ)例句Using a ruler, mark a light line with your pencil down the left-hand edge, about 1-2cm in.用尺子在左邊畫(huà)一條直線，離邊緣1-2厘米。light pencil line更多例句專(zhuān)業(yè)釋義機(jī)械工程輕鉛筆線