Trotman's anchor

同义词释义

1)Trotman's anchor,有杆锚的一种2)porter's anchor,有杆锚的一种3)rod pump,有杆泵4)sucker rod pump,有杆泵5)sucker rod pumping,有杆抽油6)rod pumped well,有杆泵井7)cavity of pole,有杆腔8)stock anchor,有杆锚9)stocked stern anchor,有杆艉锚10)stocked bower anchor,有杆主锚