TCAs助记

Traffic Alert and Collision Avoidance System ( TCAS) is very important to flight safety, it can instruct the pilot to avoid the danger through detecting the nearby aircraft conflict and predicting potential hazard in future, and help the crew maintain the safety interval with other aircraft.

空中交通预警与防撞系统TCAS对飞行安全非常重要，它能够通过对附近的飞机进行冲突检测，预测未来可能发生的危险，提示飞行员避免危险，帮助机组维持与其他飞机之间的空中交通安全间隔。

The frequency of each drug in five economic level regions were different significantly. TCAs account for 41 9% ( vs 44 5% for SSRIs and 21 6% for other novel drugs) among the patients with pharmacological treatment.

三环类药物（TCAs）使用频率为419%，五羟色胺再摄取抑制剂（SSRIs）治疗者占全部病人的445%，其他新型抗抑郁药占216%。

In the study found, to build TCAS 3d space model is feasible, but it is not feasible in the system implementation, so the author abandon establish 3d coordinate methods, and use water-dividing peace vertical direction discussed two cases.

在研究中发现，要建立TCAS的三维空间模型是可行的，但是在系统实现中是不可行的，所以作者舍弃建立三维坐标的方法，而采用分水平和垂直方向两种情况讨论。