许多超音速飞机的机头都有类似的针状设计。
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.
针状叶的那些是。
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.
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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