“阀杆”的概念、定义、翻译、参考文献-科学参考

单词	阀杆
释义	阀杆 valve handle valve link valve rod valve spindle valve stem
随便看	negative filter negative-filter type infrared gas analyzer negative flag negative float negative form of sea floor negative frequency negative frequency component negative friction negative friction pile negative function negative g negative geotropism negative ghost negative ghost image negative glow negative-glow lamp negative glow lamp negative glow region negative-going negative going edge negative going pulse negative-going reflected pulse negative going sawtooth wave negative-going signal negative goodwill

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