常見例句Preventive measures to avoiding or reducing accident of nitrogen trichloride were put forward.提出了避免或減少三氯化氮事故的預防措施。An easy and effective way of nitrogen trichloride colorimetric estimation is suggested in this paper.本文提供一種簡捷的三氯化氮比色測定方法。 返回 nitrogen trichloride