It examines the application, issues preliminary approval and publishes the trademark.申请注册的商标由商标局审查, 初步审定后,予以公告.This paper examines how accruals affect the accounting conservatism in each firm life cycle stage.本文探讨了企业生命周期...

N, N - Diisopropylethylamine ( DIPEA ) was prepared from diisopropylamine ( DIPA ) and diethyl sulfate ( Et _ 2 SO _ 4 ).以二异丙胺 ( DIPA ) 、硫酸二乙酯 ( Et2SO4 ) 为原料合成N, N二异丙基乙基胺 ( DIPEA ).Objective The study of effect of Diisop...

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芳族胺...

N, N - Diisopropylethylamine ( DIPEA ) was prepared from diisopropylamine ( DIPA ) and diethyl sulfate ( Et _ 2 SO _ 4 ).以二异丙胺 ( DIPA ) 、硫酸二乙酯 ( Et2SO4 ) 为原料合成N, N二异丙基乙基胺 ( DIPEA )....

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牛耳枫碱丙...

黏性，发粘，湿冷...