... 双作用液压油缸：double acting hydraulic jack 双柱系杆：queen bolt 双柱式转臂吊机：spearleg derrick ...
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Queen Bolt(拉杆), 此释义来源于网络辞典。
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If the queen should bolt or balk, the three hags would drag her back inside, and this time they would see to it that she never left her cell.
如果太后想要逃跑或者拖延，三个老巫婆就会把她拖回去，这次她就再也不能离开牢房。
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