工坐 meaning in English

operatingregion
working set

The gasman was at his post amid an intricate arrangement of cocks ; a fireman , leaning against the side lights , was craning forward , trying to catch a glimpse of things , while on his seat , high up , the curtain man was watching with resigned expression , careless of the play , constantly on the alert for the bell to ring him to his duty among the ropes
管煤气灯的工人一直忠于职守，呆在装置复杂的煤气灯光控制板旁边一个消防队员倚在一根撑架上，脖子伸得长长的，想看看演出拉幕工坐在高处的一张凳子上，一直守在自己的岗位上，一副尽心尽责的样子，他对演出的戏一无所知，他在等铃声一响，就去拉幕绳。