问题
填空题
我国海军舰艇赴亚丁湾护航时，护航编队一般采用前后护航形式，而不采用“并排”护航，这是因为流体流速大的地方______小，当两船高速并排行驶时，容易发生相撞事故．
答案
由流体压强和流速的关系：流速大的地方压强小，流速小的地方压强大；可知：
两船并排行驶时，两船之间的压强要小于外面的压强，从而使两船逐渐靠近，有相撞的危险．
故答案为：压强．
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我国海军舰艇赴亚丁湾护航时，护航编队一般采用前后护航形式，而不采用“并排”护航，这是因为流体流速大的地方______小，当两船高速并排行驶时，容易发生相撞事故．
由流体压强和流速的关系：流速大的地方压强小，流速小的地方压强大；可知：
两船并排行驶时，两船之间的压强要小于外面的压强，从而使两船逐渐靠近，有相撞的危险．
故答案为：压强．
| 完形填空。 |
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