They power a blade in the water that the pilot can adjust to reduce drag.
他们在水中为一个划片供能，因此驾驶者可以调整以降低拖力。
Moshier, a former Navy-pilot-turned-entrepreneur, has spent the last five years of his life working secretly on a tiny twin blade strap helicopter called The Solotrek.
莫舍以前是一名海军的飞行员，如今他成了一名企业家。他用了5年时间，一直在秘密研究一种小型的双叶直升机。
The working system adopts hydraulic pilot operation. Blade is operated by hydraulic system.
单手柄液压先导操纵，铲刀动作全部为液压控制。
The working system adopts hydraulic pilot operation. Blade is operated by hydraulic system.
作业系统采用单手柄液压先导操纵，铲刀动作全部为液压控制。
The working system adopts hydraulic pilot operation. Blade is operated by hydraulic system.
作业系统采用单手柄液压先导操纵，铲刀动作全部为液压控制。
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