“food pyramid”的概念、定义、翻译、参考文献-科学参考

单词	food pyramid
释义	food pyramid [`füd ´pir·ǝ´mid] ^ECOLOGY An ecological pyramid representing the food relationship among the animals in a community.
随便看	commutating reactor commutating zone commutation commutation rules commutative algebra commutative diagram commutative group commutative law commutative operation commutative ring commutator commutator-controlled welding commutator head commutator motor commutator pulse commutator subgroup commutator switch comonomer comose comovement effect compact compact disk compact-disk read-only memory compact H II region compactification

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。