最終更新日：2024/08/07

(construction) A telescoping steel post used for the temporary support of ceilings, walls, and trenches.

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jack post

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jack post

noun

(construction) A telescoping steel post used for the temporary support of ceilings, walls, and trenches.

I need to buy a new jack post for my porch.

意味（1）

(construction) A telescoping steel post used for the temporary support of ceilings, walls, and trenches.