compressed air unit meaning in Chinese

压缩空气机

Exhibition services 1 , for exhibits transport , customs , provide preferential accommodation , tourism , substituting scheduled aircraft , train 2 , volume provide free visits for exhibitors to invite their customers to use free of charge within 200 words published in the journal of advertising 3 . where water is a live demonstration , power electricity , compressed air unit , to apply one month in advance
1办理展品运输报关，提供优惠住宿旅游，代定飞机火车票2免费提供参观卷供展商邀请客户使用，免费刊登200字内会刊广告3凡现场演示需要用水动力电压缩空气的单位，须提前一个月申请。