“fall block”的概念、定义、翻译、参考文献-科学参考

单词	fall block
释义	fall block [`fȯl ´bläk] ^{MECHANICAL ENGINEERING} A pulley block that rises and falls with the load on a lifting tackle.
随便看	black coral black cotton soil black cyanide blackdamp black death black diamond black disease black drop black durain black dwarf black end blacker-than-black level blackeye bean blackfire black frost black granite black grease blackhead blackhead disease blackheart malleable iron black hole black ice blacking black iron oxide black kernel

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