英语词汇“packboard”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	packboard
释义	packboard ['pækbɔ:d] n.(有硬框和背带的)帆布背包
随便看	invariant recognition invariant region invariant relation invariant relativity principle invariant representation invariant routing invariants invariant scalar invariant scale invariant section invariant sections invariant series invariant set invariant-set invariant shift invariant signal invariants of projection invariant space invariant space quantization invariant spin matrices invariant spinor algebra invariant state invariant statistic invariant statistics invariant strangeness

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