无: not have; there is not; be w ...鞘: whiplash科: a branch of academic or voca ...鞘科: costaceae纹鞘科: permosynidae无鞘的: athecate无鞘的剑: a naked sword ie one without its sheath无鞘轴索: naked axon无髓无鞘纤维: naked fiber无切弧: arc welding contact; arc without contact无切口的: cutless; unnotched无巧不成书: there is no story without coincidences.; as luck would have it; what a coincidence无切口试样: plain specimen; plainspecimen; u otched ecimen; unnotched specimen无桥接现象的: nonbridging无切牌的: no-trump无强力温度试验: no-strength temperature test
