单词	service elbow
释义	service elbow service ell, street ell service ell A malleable-iron fitting for threaded pipe, having a 45° or 90° bend, with an inside thread on one end and an outside thread on the other.
随便看	focea focep foceri focf focg foch foche foch ferdinand foch, ferdinand fochn fochs fochsp foch space fochta foci focia foci bp focig focil focile focillate focillation focillon, henri focimeter focimetry

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