“tracing needle”的概念、定义、翻译、参考文献-科学参考

单词	tracing needle
释义	tracing needle 描图针
随便看	plain end tube plain-end wheel drill plain equal cross plain equal side outlet elbow plain equal tee plain external grinding machine plain extractor roll plain eyebolt plain face plain-face corrugated flange plain fashioning point plain feed plain film plain film of vertebra plain fin plain fit plain fixed gap ga-(u)ge plain flange plain flap plain flat strip moulding plain flood plain floor tile plain-form plain-frame core box plain-frame work

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