the technical difficult point and general situation of the electromagnetic hanging, releasing and lifting machine for the microgravity falling tower were discussed.
论述了微重力落塔落舱电磁悬吊、释放、提升控制系统的关键技术。
the ground lifting machine for coal seam gas coring drill is required to be speedy and powerful.
对与煤层气井用绳索取心鉆具配套使用的地面升降装置要求提升能力足、提升速度快。
founded in 1950, beijing is the earliest production lifting machine factory is a professional factory crane, 1957, the first hydraulic cranes.
the technical difficult point and general situation of the electromagnetic hanging , releasing and lifting machine for the micrograv ity falling tower are discussed.
outdoor lifting machine is a kind of lifting gear.
室外吊运机是起重工具的一种。
though releasing trams unchargedly for the lifting machine saves electricity, but it has a great harm. it brings the great hiding trouble for winders moving.