“矿井通风不足”概念、定义、翻译-科学时代

单词	矿井通风不足
释义	矿业工程技术词汇手册矿井通风不足 dacker
随便看	gradient wind gradient wind gradient wind grading grading grading grading grading grading grading grading automatic sorter grading certificate grading certificate grading log grading machine grading meat grading method grading method grading of milk grading rail grading schedule for municipal fire protection grading schedule of cities and towns grading sieve grading system grading-up

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。