“tractor”的概念、定义、翻译、参考文献-科学参考

单词	tractor
释义	tractor Encyclopedia 工学〔工作平台〕释 tractor牵引车用于牵引挂车或其他非机动车辆的专用车辆，不包括公路上行驶的汽车。 Mathematics tractor导出向量
随便看	commutative subspace lattice commutative superalgebra commutative valuation commutativity commutativity condition commutativity relation commutator commutator algebra commutator calculus commutator closed group commutator factor group commutator group commutator ideal commutator identity commutatorless motor commutator operation commutator product commutator quotient group commutator series commutator subgroup commute commuter’s bus and subway discounts commuting commuting elements commuting endomorphisms

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。