Composite of the Saturn V rocket rising from the launchpad as the gantry swings aside.
竖立架悬臂移开、土星五号火箭由发射架升空的组图。
This paper expounds the feasibility of adopting high-voltage power supply for gantry crane from the angles including design, construction, cost and energy saving, etc.
从龙门吊如采用高压供电出发,重点在设计、施工、造价、节能方面加以阐述。
General gantry crane: the most extensive use of this crane can carry a variety of items and bulk materials into, from the weight of 100 tons, a span of 4 to 35 meters.
普通龙门起重机:这种起重机用途最广泛,可以搬运各种成件物品和散状物料,起重量在100吨以下,跨度为4 ~ 35米。
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