“marginal grade”的概念、定义、翻译、参考文献-科学参考

单词	marginal grade
释义	marginal grade Encyclopedia 工学〔矿产工业指标〕释 cut-off grade；marginal grade边界品位在圈定矿体时，对单个矿样中有用组分含量的最低要求，以作为区分矿石和围岩的界限品位。是固体矿产工业矿体圈定时的一项品质指标。
随便看	Chinese ancient chamber pot chinese ancient earth structure chinese ancient engineering structure Chinese Ancient Laqianzhi Paper Chinese ancient music Chinese ancient music temperament key books and records Chinese ancient music theoretical terms Chinese ancient periodical press Chinese ancient political geographical thoughts Chinese Ancient Qin-making Artisan Chinese ancient score chinese ancient stone masory structure chinese ancient timber structure Chinese and Foreign Gazette Chinese and foreign journalists' visiting to Yan'an Chinese and Foreign News Chinese aneurolepidium Chinese angelica Chinese Angora rabbit Chinese animal medicinals Chinese Annals of History of Science and Technology Chinese Ape Man Chinese approved drug name Chinese arborvitae chinese arborvitae kernel

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。