The domestic situation of the production of MDI and TDI has not been good for recent years, so that much of which has to be imported from abroad.
英
美
释义
近年来二苯甲烷二异氰酸酯(MDI)和二异氰酸甲苯(TDI)在国内生产情况欠佳,仍需大量进口。
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