“fire engines”的概念、定义、翻译、参考文献-科学参考

单词	fire engines
释义	fire engines Encyclopedia 工学灭火救援装备释 fire engines消防车在普通商用底盘或专用底盘的基础上，根据不同用途，设计制造成具有灭火、救援、通信、照明、排烟、举高和保障等功能的车辆。
随便看	negative root negative rotation negative selection 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

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