1. 直尺：straightday-workrate 不变的日费率 | straightedge 直尺 | straightedgevane 等厚叶片
2. 直线尺：straightaway 直线跑道 | straightedge 直线尺 | straighten one's face 板起脸
3. 校正尺：straight-sheered ship 直舷弧船 | straightedge 校正尺 | straighten 矫直
4. 直棱边：straightchannelmultiplier 直通道式倍增器 | straightedge 直棱边 | straightening 校直,调直
noun
1. 911chaxun查询·英语单词大全
1. hand tool consisting of a flat rigid rectangular bar (metal or wood) that can be used to draw straight lines (or test their straightness)