“necking”的概念、定义、翻译、参考文献-科学参考

单词	necking
释义	necking [`nek·iŋ] ^METALLURGY Reducing the diameter or cross-sectional area of a tube or other piece of metal by stretching.
随便看	bell glass bell hole bellingerite bellite bell jar bell-jar testing bell-joint clamp Bellman's principle of optimality bell metal bell-metal ore bell mouth bell nipple bellows bellows expansion joint bellows gage bellows gas meter bellows seal bells and whistles bell screw bell-shaped curve Bell's law bell socket Bell's theorem bell tap bell transformer

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。