rear special service 中文意思是什麼
rear special service
解釋
後方專業勤務-
The crack - cleaning and cementation machine of airfield runway is one kind of special self - developed rear service equipment by our air force
本課題的清灌縫機是針對機場伸縮縫的特殊狀況及要求而提出的研發課題。
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