“lifting block”的概念、定义、翻译、参考文献-科学参考

单词	lifting block
释义	lifting block [`lift·iŋ ´bläk] ^{MECHANICAL ENGINEERING} A combination of pulleys and ropes which allows heavy weights to be lifted with least effort.
随便看	Paraonidae para-oxon parapack Paraparchitacea paraparesis parapatric parapatric speciation para-pentyloxyphenol parapertussis parapet paraphase amplifier paraphimosis para-phthalic acid paraphysis paraplasm paraplegia parapodium parapolar cell parapositronium parapsychology paraquat pararammelsbergite para red pararipple pararosaniline

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