英语语法分析

System performance is analyzed in uncoded system.

分析了无编码情况下系统的性能。

A documented procedure should be followed if uncoded printed materials are returned to stock.

如果将未打印批号的包装材料退库，则应按书面程序规定执行。

Then, the performance of BCH coded FFH OCDMA system was analyzed, and was compared with uncoded FFH OCDMA system.

论述了BCH信道编码对FFH- OCDMA系统性能的影响，并将它和未编码的FFH- OCDMA系统进行了比较。