方向指示器：一种指南针，通过直接读取和比较两个指示器来帮助飞行员飞行预定航线。
方向指示器
中心指示器
转向指示器
中心指示器
方向指示器
转向指示器
中心指示器
[航][水运]方向指示器；方向标；转向标；航向指示器；中心指示器
Twitter has become the direction indicator of the news media.
微博现在成了媒体的风向标。
An improved theodolite fixed with a simple laser direction indicator was introduced.
介绍了用一种简易激光指向器改装经纬仪，使普通经纬仪带有激光指向器。
The utility model belongs to the technical field of liquid flow direction indicator signs.
本实用新型所属的技术领域涉及液体流向指示标。
There's also a handful of elements that we seldom see in these apps, such as a direction-relative wind indicator, optional motion-driven navigation and visual themes.
We believe the third quarter will be an important indicator of which direction this economy is really headed and what that will mean for consumer spending.
Yes, investor sentiment is a contrary indicator when it reaches extremes in one direction or the other, the market usually moving contrary to what the majority expects.