He had no rope mates, no porters, no rescue team.
他没有绳索助手,没有行李搬运工,没有救援队。
Greater die availability compared with manual storage systems; no maintenance of floor-level trans porters is needed, and personnel costs are saved.
比人工存储极大提高了效率,地面的传送系统无需维护,减少了仓管人员。
Greater die availability compared with manual storage systems; no maintenance of floor-level trans porters is needed, and personnel costs are saved.
比人工存储极大提高了效率,地面的传送系统无需维护,减少了仓管人员。
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