前言：对利用管道气力输送原理和吸排车运输炼铁重力除尘和干法除尘灰的工艺进行讨论与总结。
The essay discusses and concludes the transportation process of dust collected by gravity precipitator and dry type deduster during ironmaking by means of pneumatic conveying through pipeline.
重力钩是大型的悬挂设备，产生可使更小船只由大型舰运输的重力护罩。
Gravitic Hooks are large, suspensory arms which create a gravitic sheath in which a small vessel can be transported by a larger one.
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