Roll of 200 meters can be installed on the tape, the tape greatly reduce the frequency of replacement.
可安装200米的大卷胶带，大大降低更换胶带的频率。
2
Next, according to the weapon system request, application frequency range analytic method, has designed the roll stabilization loop using the PD controller.
其次，根据总体要求，应用频域分析法，设计了PD控制滚转稳定回路；
3
Individual infinite variable speed drive of each roll with AC-motors coupled to programmable frequency inverters.