traversing helicopter

• 横列式直升机

traversing helicopter的用法和样例：

例句

1. In the research on some coaxial helicopter dynamics, the abnormal value of the dozens of outfield flight data is processed with the algorithm and satisfactory results are acquired.
   在某型共轴式直升机的动力学特性研究工作中，利用这一方法对多次外场试飞数据进行了异常值处理，得到了比较满意的结果。