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1.The engineer used a mobile reference axis to measure the angle of the roof.
工程师使用移动参考轴来测量屋顶的角度。
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2.The team leader set up a mobile reference axis to ensure accurate measurements in the field.
团队领导设置了移动参考轴，以确保在现场的准确测量。
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3.The scientist used a mobile reference axis to study the movement of stars in space.
科学家使用移动参考轴来研究太空中恒星的运动。