Four years ago he hit upon the daring idea of landing on a moving glacier in a helicopter to measure its speed.

四年前，他偶然想到一个大胆的主意，乘直升飞机降落在流动的冰川上，测量其流动的速度。

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A new method to measure the gap in helicopter control system is introduced. With this method, the results of the measurement are consistent with the theoretic calculation.

介绍了一种直升机操纵系统间隙测量的新方法。用此方法测出的结果与理论计算吻合。

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A new way to measure the gap in helicopter control system is introduced, and the theoretical basis, test process and result of the measurement are discussed.

针对直升机操纵系统间隙难以精确测量的问题，提出了一种直升机操纵系统间隙测量的新方法，并对此测量方法的理论依据、试验过程和结果进行了分析。

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