英语词汇“annular ring”的读音、翻译、释义、用法及例句-集火网

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词汇	annular ring
释义	annular ring 【化】环孔
随便看	two-girder overhead travelling crane two-glass test two-handed two-handled two-head automatic arc welding machine Two heads are better than one two-high rolling mill two-input adder two-input subtracter two-joint muscle two laws in opposition two layered cylinder two-layered ectoderm two-layer magnetic taper two-legged two level addressing two-level addressing two-level encoding microinstruction two level grammar two level microprogram control two-level subroutine two-level system two-line two lipped end mill two-masted