以下为句子列表：
英文: Based on the same principle of floating stability calculation of rectangle caisson, the moment of inertia of gravity axis of the fan shape is transformed through coordinate transformation formula, and the general formula and calculation method of floating
中文: 摘要引用矩形沉箱浮游稳定计算的相同原理，把扇形重心轴的惯性矩通过转轴公式的转换，再经数学证明，得到带箱格圆形沉箱浮游稳定计算的通用公式和计算方法。
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英文: In underground engineering, the cavity axis should be designed to intersect fractures with large-angle (≤90°) as it traverses fault and joints.
中文: 摘要在地下工程中，当洞室穿越断层、节理等破碎带时，应尽可能使洞轴线走向与破裂面的走向呈大角度相交(≤90°)。
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英文: The eolutionary precursor to the backbone, the notochord is a fine, flexible chord defining the body axis in the early embryos of all ertebrates.
中文: 脊索是脊椎进化的前体，脊索在所有的脊椎动物胚胎早期起到柔韧轴的作用。
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英文: X axis and Y axis adopt ball spiral rods with excellent precisions and low friction factors.
中文: X.Y轴采用滚珠螺杆传动精度佳，摩擦系数小。
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英文: Results: Two groups of standards of Downs analysis were established. Facial angle, MPA, cant of occlusion plane and Y axis had significant differences ( P<0.00) between the two different porion groups.
中文: 果 :得出两组使用不同耳点的东北地区正常合成年人的Downs分析法正常值 ,两组比较发现 ,其中与眶耳平面有关的面角、下颌平面角、合平面角、Y轴角间均有极显著差异 (P <0 .0 0 )。
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