Offset driving wheel in combination with castor wheel increase stability of truck during lifting, while minimize the maintenance frequency compared to a single central wheel.
偏置式驱动轮与万向轮相结合，增加车子在操作过程中的稳定性，同时减少了万向轮的维修频率。
In order to ensure the reliability and stability of the communication link in the data transmission, we have to estimate the Doppler frequency offset, and amend it.
为了保证通信链路中数据传输的可靠性与稳定性，需要估计出多普勒频偏，并对其进行修正。
In order to ensure the reliability and stability of the communication link in the data transmission, we have to estimate the Doppler frequency offset, and amend it.
为了保证通信链路中数据传输的可靠性与稳定性，需要估计出多普勒频偏，并对其进行修正。
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