The rotors fought to keep us in the air.
螺旋桨的叶片在奋力地旋转以便让我们停留在空中。
In an emergency, it can land even if four of its 16 rotors fail.
在紧急情况下，即使16个旋翼中有4个出现问题飞机也能降落。
The equipment can drive the rotors rotation at two different speeds.
这个装置可以以两种不同的速度驱动转子转动。
The result showed that the design of the rotors was reasonable, and could operate reliably.
结果表明，该转子设计合理，能可靠地运行。
Rotors of better quality always last longer and work more efficiently.
质量较好的转子总是比较经久耐用的，工效也高一些。
Rotors of better quality always last longer and work more efficiently.
质量较好的转子总是比较经久耐用的，工效也高一些。
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