在英国温莎城堡的一篇文章中，出现了staircase party一词，看这应该不是晚会的意思。可以参考下文，求教达人们这个词用中文应该怎么说？非常感谢！

For The Household Cavalry, this is a dismounted parade - for which
the Regiment provides a dismounted Band, four dismounted Troops,
and a Staircase Party comprising 4 Officers and 16 ORs.

The Regiment lines the route from the Castle to the steps
of St George's Chapel (the steps of which are lined by the Staircase Party).
This is the only occasion when the Household Cavalry Mounted Regiment
parades dismounted.

party有（一同活动的）一组，一队，一行的的意思
staircase party 梯队
指军队战斗或行军时，按任务和行动顺序区分为几个部分，每一部分叫做一个梯队。
翻译如下：
对于英国皇家骑兵卫队，这是一次下马阅兵游行，骑兵团为此次阅兵游行提供了一个下马行走的乐队，四个下马行走的部队，以及由4名军官16名士兵组成的一个梯队。




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