The echo sounder is now gradually out of use in navigation, because it has many errors.
回声测深仪在导航仪器中的地位在下降，其原因是它存在着较多的误差。
It has been improved in many ways, but the way in which the protocol breaks information into packets and then checks for errors in their transmission is still recognisable.
尽管这项技术在很多方面已经有了改进，但协议将信息进行分割成数据包，并帧听传输过程中错误的方法却是公认的。
Our Party has made many errors, but each time the errors were corrected by relying on the Party organization, not by discarding it.
我们党经历过多次错误，但是我们每一次都依靠党而不是离开党纠正了自己的错误。
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