“sylvester”的概念、定义、翻译、参考文献-科学参考

单词	sylvester
释义	sylvester [sil`ves·tǝr] ^{MINING ENGINEERING} A hand-operated device for withdrawing supports from the waste or old workings in a mine by means of a long chain which allows the device to be positioned at a safe distance from the support to be extracted.
随便看	ivory point Ixion methylbenzene methylbenzethonium chloride methyl benzoate methyl blue methyl borate methyl bromide methyl butene methyl butyl ketone methylbutynol methyl butyrate methyl caprate methyl caproate methyl caprylate methyl carbonate methylcellulose methyl chloride methyl chloroacetate methyl chlorocarbonate methyl chloroform methyl chloroformate methyl cinnamate methyl cyanoacetate methyl cyclohexane

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