It is characterized in that: it changes the common drip line-type body of submarine into flat round type.

它的主要特征是：改变潜水艇常用的水滴线型艇体，而采用了近似的扁圆体。

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It is characterized in that: it changes the common drip line-type body of submarine into flat round type.

它的主要特征是：改变潜水艇常用的水滴线型艇体，而采用了近似的扁圆体。

youdao