annual magnetic variation_新英汉石油技术词典
annual magnetic variation
[新英汉石油技术词典]
annual magnetic variation周年磁变，地磁年变化
是什么意思，annual magnetic variation的解释，annual magnetic variation的翻译
[电信英汉词典] annual magnetic variation
[石油英汉词典] annual magnetic variation
[航海英汉词典] annual magnetic variation
