back-fills
plural of back-fill
(organic chemistry) An unsaturated fatty acid having 20 carbon atoms and 3 double bonds; homolinolenic acid
A surname.
(uncountable) Cheap rough cloth such as would be used to make bags (sacks). / (countable) Firing or termination of an employee.
作業班は検査前に溝の修復を完了させるため、追加の埋め戻し材を注文した。
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