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precursors的英文翻譯是什么意思,詞典釋義與在線(xiàn)翻譯:
英英釋義
名詞 precursor:
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a substance from which another substance is formed (especially by a metabolic reaction)
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a person who goes before or announces the coming of another
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something that precedes and indicates the approach of something or someone
precursors的用法和樣例:
例句
- Rare earth luminescence materials of alkaline earth stannates have also been prepared via thermal decomposition of hydroxo stannate precursors.
利用某些新型帶羥基的堿土錫酸鹽作為前驅體,固相反應合成摻稀土的錫酸鹽發(fā)光材料。 - The two cyclopentadienyl groups in metallocence compexes can be linked by one or two bridging groups to form ansa-metallocence catalyst precursors.
摘要茂金屬化合物中兩個(gè)茂環(huán)可以通過(guò)一個(gè)或兩個(gè)橋基相連接,形成各種橋聯(lián)茂金屬催化劑前驅體。