变高度薄壁箱梁
thin-walled box girder with variable height
变高度箱梁
box girder with varying depths
变高度悬臂板
Cantilever Plate with Linearly Varying Depth
变高度直腹板
straight webplate with varying height
标准密度高度
standard density altitude
方位高度指示器
axle scope
azimuth elevation indicator
风速随高度变化指数
index of wind speed variation with actitude
风向转变高度
Turning height of wind direction
风压高度变化系数
wind pressure height coefficient
高变位齿轮副
archaic military technique