英语词汇“sighthole”的读音、翻译、释义、用法及例句-开邑网

词汇	sighthole
释义	sightholesighthole[ˈsaithəul]n.1.■(测量用仪器等上的)观察孔,检查孔,窥视孔
随便看	return airway return altitude return and allowance return and allowance book return a negative return angle return attribute return a visit return bar return bar spring return bead return bead and rebate joint return-beam tube return beam vidicon return-beam vidicon camera return beam vidicon camera return belt return bend return bend type return bill return blank return blanking die return-blank type blanking die return block return board

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