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为什么破冰船能够破冰?

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为什么破冰船能够破冰?

在严寒的冬季,北方的港湾和海面常常会结冰,阻sai航dao,这时,往往需要使用破冰船进行破冰。破冰船为什么能破冰呢?同其他船相比,破冰船的船ti结构特别jian实,船壳钢板比一般船舶厚很多;船shen宽,便于在冰层中开chu较宽的航dao,船shen短(一般船的长宽之比约为7:1-9:1,破冰船是4 : 1),进退和变换方向灵活,易于cao2纵;吃水shen,可以破碎较厚的冰层,功率大、航速高,向冰层猛冲时,产生的冲击力大;它的船tou呈折线,使船tou底线与水平线成斜角,船tou可以"爬"上冰面;此外船tou、船尾和船腹两侧,还备有很大的水舱作为破冰设备。正是这些特点,使得破冰船能够轻易地在冰封的水面上开辟航dao。

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