"One band" points at a green band that around the longitudinal traffic greenbelt of Beijing-Guangzhou railway and Beijing-Jiulong highway.
“一带”指一条中部绿色带，即围绕京广铁路和京九高速公路的纵向交通绿化带。
2
The article study widening band of longitudinal mode piezoelectric transducers.
本文研究纵向振动压电换能器的频带展宽问题。
3
The attenuation factor of longitudinal wave was changing linearly, whereas the attenuation factor of the slow shear wave kept nearly constant with a low frequency on the exploration seismic band.