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1·From the side, the front line is perpendicular and straight, coinciding with the maxillary edge or slightly projected forward.

从侧面看，前行是垂直而直，与上颌骨边缘或稍向前预测相吻合。

2·The powered transition took about 20 seconds, and, if needed, the pilot could hand-crank the wings into the more forward position (more perpendicular to the fuselage) for landing.

该驱动过渡约需20秒，而且如果需要，飞行员可以手工曲柄到更多的前沿阵地降落（更多垂直于机身）的翅膀。

3·The Terrier's legs should be carried straight forward while traveling, the forelegs hanging perpendicular and swinging parallel with the sides, like the pendulum of a clock.

该梗犬在行进中要求腿部笔直向前，前腿垂直悬起，如同钟摆般向身体两侧平行摆动。

4·From the transfer dynamics in perpendicular gas-liquid phase flow point of view, this paper put forward a calculating method of air volume in deep-well process design.

从垂直气液两相流运行动力学角度，提出深井工艺设计中空气量的计算方法。