单元宽度
对于矩形变幅杆的指定单元，指其两相邻槽壁之间、或其槽壁与变幅杆端部之间的距离（沿变幅杆宽度方向测量）。该尺寸不应计入因耳状突起、环带等造成的宽度缩减部分。
矩形变幅杆通常设计为所有单元宽度大致相等，但这并非硬性要求。
另见单元厚度。
Element width
For a designated element of a rectangular horn, the distance (measured in the direction of horn width) between its two adjacent slot walls or between its slot wall and the end of the horn. This dimension should not include any reduced width due to earing, banding, etc.
Rectangular horns are usually designed with all elements of approximately equal width, although this is not a requirement.
Also see element thickness.