“crown platform”的概念、定义、翻译、参考文献-科学参考

单词	crown platform
释义	crown platform [`krau̇n ¦plat´fȯrm] ^{PETROLEUM ENGINEERING} A platform located at the top of the derrick that provides access to the sheaves of the crown block.
随便看	pentoglycerine pentolinium tartrate pentolite pentosan pentose pentose phosphate pathway pentosuria pentoxide pentyl pentylenetetrazol pentyne penumbra penumbral eclipse penumbral waves Penutian PEPE peperite pepo pepper peppermint peppermint camphor peppermint oil pepper sludge PeP reaction pepsin

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