head-rail 门框上帽头
double-head rail 双头轨
double head rail 双头轨条
bull-head rail 圆头钢轨
rail head 轨头
bull head rail 工字钢轨
head rail detail 船首栏杆
N the end of the table from which play is started, nearest the baulkline 离发球线最近和开局击球的一端 [billiards]
Roll-up blinds that have release clips right below the head rail on the backside of the blind are not included in this recall.
在百叶窗背后的上横杆正下方带有松开固定装置的卷轴式百叶窗不包括在本次召回中。
The contour size changes of rail before and after straightening, involving width of rail head, rail height and rail length, were measured. The causes of rail height decrease were analyzed.
测定了矫直前后钢轨外形尺寸变化(包括轨头宽度、轨高、钢轨长度)，分析了轨高减少的原因。
应用推荐