They hope to reduce both the number of components needed in a construction job and their weight—by replacing solid supports with hollow tubes, for example.

他们希望减少建筑工作所需的部件数量和重量，例如，用空心管代替实心支架。

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The fangs of pit vipers are long, hollow tubes .

颊窝毒蛇的毒牙是长的空心管子。

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The large stinging hairs are hollow tubes with walls of silica making them into tiny glass needles.

这些大的刺毛是中空的管子，硅石构成其壁，使其扎入玻璃针孔中。

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Fullerenes are hollow tubes, spheres, or ellipsoids that are composed entirely of carbon.

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They nailed a pair of hollow tubes on the walls of the chimpanzee enclosure and loaded them with four containers.

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All rely on catheters hollow tubes that let doctors burn away and reshape heart tissue or correct defects through small holes in blood vessels.

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