Open Working Space 公用工作场所
open working area 露天工场
open cut working 露天采矿
open-circuit working [电] 开路工作
the Open Platform Working Group 开放平台工作组
open circuit working 开路工作方式
open pit working 露天采场
The data on side clearance and open working clearance from the first to the fourth ring were provided.
提供了第一到第四道环的侧面间隙和工作开口间隙数据。
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