Ball Pass Frequency Outer Race 轴承外环轨道损坏频率
The hurricane was expected to pass near North Carolina's Outer Banks last night.
这次的飓风被预计将于昨天夜里路过北卡罗琳娜州的外邦科斯。
Even if the guards let us pass, there is no way through the outer wall.
即使那些守卫让他们通过，他们也没办法通过外墙。
This PFC was realized by employing sliding-mode variable-structure inner current loop control and outer voltage loop PI control with digital low-pass filter to achieve high performance.
提出了采用滑模变结构电流内环与由PI调节器和数字低通滤波器组成的电压外环相结合的控制系统，以实现高性能高速度的功率因数校正。
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