adjustable pitch propellers

• 调距桨

adjustable pitch propellers的用法和样例：

例句

1. This paper analyses the operation performance of the propeller on the dynamic positioning duty and the adjustable characteristics of the FPP electrical propulsion.
   分析了动力定位工况中螺旋桨的工作特性以及定距桨电力推进的调节特性。