船上设有把手、安全拉绳、牵引环、船桨等相关配件。
The boat is equipped with handles, safe pulling rope, draw ring, quant and other relevant accessories.
或者，你可以完全的避开喉环，仅仅把链子收紧，然后把牵引索扣在上面。
Or you can bypass the throat ring altogether and fasten the nose chain to itself and snap the lead rope to it.
由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.
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