The lab manager emailed suppliers to confirm delivery of the reactant before Monday's test run.

實驗室經理寄電子郵件給供應商，確認反應物能在週一試運轉前送達。

Please list each reactant and its quantity in the shipping manifest for customs inspection.

請在出貨清單上列出每一種反應物及其數量，以供海關檢查。

During the safety meeting, engineers discussed storing the reactant away from heat sources.

在安全會議上，工程師討論將反應物存放在遠離熱源的地方。