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。
Individual infinite variable speed drive of each roll with AC-motors coupled to programmable frequency inverters.
电机驱动方式为交流变频无极变速驱动。
A nonlinear parametric excitation equation is obtained for ships in longitudinal waves, and the dynamic stability is analyzed when the natural frequency of heave and roll are approximately equal.
本文建立了在纵浪上航行船舶的非线性参数激励横摇运动方程，研究了当升沉固有频率接近横摇固有频率时船舶的稳定性。
The dynamic characters about amplitude and frequency of ship nonlinear roll under typical wave parameters were obtained.
通过分析所得模图和相图的典型特征，得到舰船非线性横摇幅值和频率等动力学特性。
This figure shows that the power response is very smooth throughout the whole frequency range, and the controlled off-axis roll off of the tweeter.
这幅图表明，频率响应是非常平滑地贯穿整个频率范围和高音喇叭的受控离轴滚降。
According to the results of model tests in a regular beam wave, the motion stability, the time history of the motion and the amplitude-frequency response of the parametric roll are investigated.
相据在规则横浪中的船模试验结果，研究了参激横摇运动的稳定性、时间经历和幅频响应，还讨论了横摇阻尼、初稳心高度和波浪等因素对参激横摇运动的影响。
The roll is increased and severer than shipping state when the frequency of wave is similar as the natural rolling frequency of ships.
船舶在系泊或低航速状态下，当涌浪周期接近船舶自然横摇周期时，船舶摇摆比航行时更为剧烈。
Full automatic vacuum roll kneading machine not only has the common roll kneading machine features, also has the function of frequency conversion technology.
全自动真空滚揉机除具有普通滚揉机的特点外，还具有变频技术功能。
Full automatic vacuum roll kneading machine not only has the common roll kneading machine features, also has the function of frequency conversion technology.
全自动真空滚揉机除具有普通滚揉机的特点外，还具有变频技术功能。
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