backfiller
A machine for refilling an excavation.
nicker tree
plural of damsel in distress
(physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter
作業員たちはパイプラインの修理後、現場を迅速に復旧させるために埋め戻し機を導入した。
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DiQt
Free
★★★★★★★★★★
