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spanner 音标拼音: [sp'ænɚ] n. 扳手 扳手 spanner n 1: a hand tool that is used to hold or twist a nut or bolt [ synonym: { wrench}, { spanner}] spanner \ span" ner\ ( sp[ a^] n" n[~ e] r), n. 1. One who, or that which, spans. [ 1913 Webster] 2. The lock of a fusee or carbine; also, the fusee or carbine itself. [ Obs.] [ 1913 Webster] 3. An iron instrument having a jaw to fit a nut or the head of a bolt, and used as a lever to turn it with; a wrench; specifically, a wrench for unscrewing or tightening the couplings of hose. [ Chiefly British usage] [ 1913 Webster] 4. pl. A contrivance in some of the earlier steam engines for moving the valves for the alternate admission and shutting off of the steam. [ 1913 Webster]
Inchworm \ Inch" worm`\, n. ( Zool.) The larva of any geometrid moth. It progresses forward by first bringing the rear end of the body forward, forming a loop, then moving the front part of the body; called also { measuring} worm, { measuringworm}, { spanner}, and { looper}. See { Geometrid}. [ 1913 Webster]
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