The propeller blade has been mounted.

推进器的叶片已经安装好了。

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We have to test a number of blade types to avoid this happening or at least make sure it does not damage the turbines or reduce performance.

我们必须测试多种类型的叶片来避免这种情况的发生，或者至少确保它不会损坏涡轮或降低其性能。

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The blade type anemograph is used to measure and simulate the turbulence speed.

使用叶片式风速仪测量模拟气缸内的涡流转速。

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