The shape of streamlined train head is made of the 3-dimensional space free form surface, whose shape outline curve USES NURBS curve and complex shape surface USES 3-d NURBS surface.

基于流线型的列车头部外形由三维空间自由曲面构成，提出采用NURBS曲线设计外形型线和用三维nurbs曲面描述复杂三维曲面的车头外形设计方法。

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If the shape is irregular, the shadow should follow its outline.

如果形状是不规则的，阴影应该沿着轮廓走。

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Tip: to determine your true shape, pull your hair off your forehead with one hand, look into a mirror and trace the outline of your face on the glass with lipstick.

小贴士：先要确定好自己的脸型，单手把遮住前额的发丝拢开，一边照着镜子一边在上面用口红把您的脸型轮廓勾画下来。

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Then, with a few other flowers, I sketched the general outline and shape before placing the rest of the stems into the composition.

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Swiss Re's Gherkin (designed by Lord Foster) has been slow to find tenants because its environmentally-friendly ventilation system and cigar-like outline produce an awkward shape.

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Easy Clip feature allows users to instantly outline and crop any content on the screen in any shape to save, share or paste.

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