“黑土”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	黑土
释义	环境科学与工程词汇手册黑土 terra nera
随便看	completely rough zone of turbulent pipe flow completely specialized farming complete man complete medium complete medium complete medium complete medium--complete medium（CM） complete medium（CM） complete melting complete metric space complete miscibility complete-mixing aeration complete monopoly complete monopoly completeness completeness completeness completeness check completeness of a class of decision functions completeness of modal propositional calculus completeness of system S4 completeness of system S5 completeness of system T complete nirvāṇa complete orthonormal set