许多超音速飞机的机头都有类似的针状设计。

Many supersonic aircraft have a similar needle at the nose.

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你脑中想象的正是活跃的太阳上数千根新生的针状体之一。

You are envisioning just one of thousands of young spicules on the active Sun.

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强化水晶一种极度精纯的针状结晶体，具有超常的剪应力及不同寻常的电性及表面属性。

An extremely fine filamentary crystal with extraordinary shear strength and unusual electrical or surface properties.

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强化水晶一种极度精纯的针状结晶体，具有超常的剪应力及不同寻常的电性及表面属性。

An extremely fine filamentary crystal with extraordinary shear strength and unusual electrical or surface properties.

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