“1928～1929年大旱”的概念、定义、翻译、参考文献-科学参考

单词	1928～1929年大旱
释义	1928～1929年大旱 Encyclopedia 工学〔中国历史上重大的水旱灾害〕释 severs drought during 1928～19291928～1929年大旱 20世纪20年代中国发生的受灾范围较大的持续干旱。
随便看	negative orthant negative parallax negative part negative particular proposition negative part of a function negative part of an element negative peak negative pedal curve negative perfect correlation negative permeability materials negative permittivity materials negative phototropism negative plate negative platemaking negative Poisson's ratio material negative polarity items negative polarity machining negative polynomial distribution negative-positive photographic system negative pressure negative pressure injection negative pressure method for deposit negative-pressure pulverizer with intermediate storage bunker negative pressure region negative pressure suction appliance

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。