1) green arrow
绿灯箭头
2) green straight - through arrow
直行绿色箭头(灯)
3) green filter arrow light
绿色箭嘴灯号
5) arrow
[英]['ærəʊ] [美]['æro]
箭头
1.
There are two traditional ways to determine the directions of the gears in common textbooks, one is the way of positive and negative sign, and the other is the way of arrow.
教材介绍的是两种传统方法,即正负号法和箭头法。
补充资料：开绿灯
比喻准许做某事：不能给不合格产品上市～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条