“porthole”的概念、定义、翻译、参考文献-科学参考

单词	porthole
释义	porthole [`port´hōl] ^{DESIGN ENGINEERING} The opening or passageway connecting the inside of a bit or core barrel to the outside and through which the circulating medium is discharged. ^ENGINEERING A circular opening in the side of a ship or airplane, usually serving as a window and containing one or more panes of glass.
随便看	radial canal radial chromatography radial cleavage radial deviation radial displacement radial distribution function radial Doppler effect radial drainage pattern radial draw forming radial drill radial drilling radial engine radial error radial faults radial-flow radial-flow turbine radial force radial gate radial grating radial heat flow radial lead radial load radial locating radial motion radial nerve

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