双语例句
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This standard specifies the technical requirements special regulations on the inspection lifting and laying down of self-erection mast of land rig.
本标准规定了陆地钻机自升式井架起放作业的检查、起升和下放技术要求及特殊规定。
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Masts are usually rectangular or trapezoidal in shape and offer a very good stiffness, important to land rigs whose mast is laid down when the rig is moved.
桅架的形状一般呈矩形或者梯形。具有很好的刚度，对于陆地钻机而言非常重要，当钻机移去时，桅架需要放倒。
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They rig the game in other ways, too, enjoying privileged access to land and permits.
他们也用别的方式操纵游戏，享受获得土地和许可的优先权。
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