“continuous-rail frog”的概念、定义、翻译、参考文献-科学参考

单词	continuous-rail frog
释义	continuous-rail frog [kǝn¦tin·yǝ·wǝs ¦rāl `fräg] ^ENGINEERING A metal fitting that holds continuous welded rail sections to railroad ties.
随便看	active voltage active workings activity activity chart activity coefficient activity duration activity level activity ratio activity sampling activity sequence method activity series actol actomyosin actophilous actual age actual argument actual cost actual cubic feet per minute actual decimal point actual elevation actual exhaust velocity actual height actual horsepower actual instruction actual key

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