“parts per million (ppm)”概念、定义、翻译-科学时代

单词	parts per million (ppm)
释义	请查阅parts per million--parts per million (ppm)
随便看	biotite biotitite Biot number (Bi) biotope biotope biotope biotope biotope biotower biotoxicology biotoxicology biotoxin bio-transformation biotransformation biotransformation biotransformation biotransformation biotransport biotroph Biot-Savart formula Biot-Savart formula Biot-Savart law Biot-Savart law bioturbation bioturbation

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。