例句
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concave mirror
凹面镜
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concave lens
凹透镜
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Compared with even die drawing, camber die - drawing's limit drawing coefficient is detracted, so efficiency is increased.
曲面凹模拉深与平端面凹模拉深相比, 降低了极限拉深系数,减少工序 、 提高了效率,降低了成本.
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A blended wing - body, variable camber wings, and forebody strakes provided extra lift and control.
翼身融合, 变曲率机翼, 还有前机身边条翼提供了额外的升力和控制性能.
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...the concave bottom of an empty hair spray container.
空喷发胶罐凹进去的罐底
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...a concave stomach.
凹陷的腹部
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In adults its contour may be straight, slightly concave or slightly convex.
成人肺其形状可以是直的, 轻微凹下或轻度突出.
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The palm of one's hand is slightly concave.
人的手掌是微凹的.
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The cloven hooves are sharp edged , elastic and concave.
蹄锋利,呈凹形, 富有弹性.
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The front subframe is modified for extra camber and castor.
前副车架被修改为额外拱形和蓖麻.