“sleeper”的概念、定义、翻译、参考文献-科学参考

单词	sleeper
释义	sleeper [`slēp·ǝr] ^{CIVIL ENGINEERING} A timber, steel, or precast concrete beam placed under rails to hold them at the correct gage.
随便看	dimension stone dimension theory dimer dimercaprol dimeric water dimerization dimerous dimetan dimethachlon dimethicone dimethoate dimethrin dimethyl dimethyl-2,3,5,6-tetrachloroterephthalate dimethylamine dimethylbenzene dimethyl carbate dimethyl diaminophenazine chloride dimethyl ether dimethylethylene dimethylglyoxime dimethylisopropanolamine dimethylolurea dimethyl phthalate dimethyl sebacate

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