“knapsack sprayer-duster”的概念、定义、翻译、参考文献-科学参考

单词	knapsack sprayer-duster
释义	knapsack sprayer-duster Encyclopedia 农学背负式喷雾喷粉机释 knapsack sprayer-duster背负式喷雾喷粉机采用气流输粉、气压输液、气力喷雾原理，由汽油机驱动，既可以单独喷雾或喷粉，又可以同时进行喷雾喷粉（即湿润喷粉）的植保机械。
随便看	positive formula positive function positive functional positive fundamental sequence positive glow positive Grassmannian positive half-trajectory positive helicity spinors positive Hermitian kernel positive Hermitian operator positive homogeneous function positive hull positive image positive index of inertia positive infinity positive integer positive integral kernel positive interaction between nutrients positive ion positive ion, cation positive ion mode positive kernel positive kurtosis positive leap second positive lens

科学参考收录了854744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。