delta 意思 - delta airline china telephone : 2024-10-31 delta 意思delta翻译：三角洲, （希腊语字母表的第四个字母）。了解更多。 delta 意思We offer traditional amines such as DABCO® 33 LV, a well-known gel catalyst for flexible slabstock applications, or DABCO® T, a reactive, medium active balance amine catalyst for rigid foam applications.
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delta 意思Delta（大寫Δ，小寫δ，中文音譯：德爾塔 、德耳塔），是第四個希臘字母。delta翻譯：三角洲, （希臘語字母表的第四個字母）。了解更多。
delta 意思Delta（大寫Δ，小寫δ，中文音譯：德爾塔 、德耳塔），是第四個希臘字母。
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delta 意思