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"Tugboat" can sometimes be a misnomer, since the watercraft can push as well as pull. Here's why tugboats are designed to do that and when they might do so.
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Why Do Tugboats Sometimes Push Instead Of Pull? - MSN
"Tugboat" can sometimes be a misnomer, since the watercraft can push as well as pull. Here's why tugboats are designed to do that and when they might do so.
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