蓝牙名称是V900 » V900 Bluetooth name is 主起升机构 » Main winch 本公司专业生产：水洗标、吊牌、彩卡、不干胶贴纸、条形码贴纸、丝翻译公司种印标、织标等其他商标辅料.
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The frequency control of motor speed is used for alternating current motor of main winch on No1 BF charging system, so that it is possible to carry out control of skip moving speed.
安钢1号高炉主卷扬交流电机采用变频调速技术，实现料车运行调速控制。变频器运行一年多来，未发生过一次故障。
According to the problem that the welding seam of the main winch drum structure is easy to crack, this article analyzes the cause and puts forward efficient measures of reducing it's ouurrence.
根据主井绞车滚筒结构的开焊情况，分析了开焊的因素，提出了减少开焊的措施。
Derrick: the main hoist winch and a system of elevators lifts 1,250 tons of pipes and machinery through the 72.
钻塔：主起吊绞车和升降机系统可通过船底72英尺宽的开口，提升1,250吨重的管道和机械。
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