“automatic web threading device”的概念、定义、翻译、参考文献-科学参考

单词	automatic web threading device
释义	automatic web threading device Encyclopedia 文学自动穿纸装置释 automatic web threading device自动穿纸装置将卷筒纸从印刷机开卷装置沿印刷走纸路线，穿行通过各个印刷机组，到达折页或收卷装置的自动装置。
随便看	negative semi-definite negative semi-definite form negative semi-definite kernel negative semi definite matrix negative semi-definite matrix negative semi-definite operator negative semi definite quadratic form negative semi-definite quadratic form negative semi-definte quadratic form negative semi-orbit negative semi-trough negative sense single-stranded RNA virus negative sequence negative sequence current carrying capability negative side negative sign negative skewness negative skin friction of piles negative spinor negative stable matrix negative staining negative strand negative stress negative subspace negative supercoiling

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