英语词汇crown block是什么意思，crown block的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	crown block
释义	crown block　定滑轮
随便看	block up block up block up block up block valve block vote block vote block vote block welding block wheel block winding block word block world block-a-block block-grid keying block-head block-heteric nonionics basic slag practice basic software basic solvent basic sour basic space basic specifications basic specifications basic spline

英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。