“swivel block”的概念、定义、翻译、参考文献-科学参考

单词	swivel block
释义	swivel block [`swiv·ǝl ´bläk] ^{DESIGN ENGINEERING} A block with a swivel attached to its hook or shackle permitting it to revolve.
随便看	back rake back range back reef back-reflection photography back resistance backrope back-run process back rush backs backsaw backsawing backscatter gage backscattering backscattering thickness gage backscatter radar backset back-set bed backshore backshore beach backshore terrace back shot backsight backsight method back siphonage back slope

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