The Trailer Mounted Rig HXY-800QT was developed to meet the requirement of exploitation of Sandstone Uranium Mine.

为了满足可地浸砂岩铀矿的开采工艺要求，研制了HXY - 800 Q T型拖车钻机。

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Sea Launch experienced a spectacular rocket failure on the rig in 2007, and was forced to restructure its finances as orders slowed and debts mounted.

BBC: Sea Launch rocket company returns to service

These are propellers mounted in transverse tunnels in the hull, to help position the craft and hold her stable while alongside a rig.

ECONOMIST: Marine technology: A voyage of discovery | The