pilot survey
[信息英汉词典]
pilot survey事先甸, 事先选取
是什么意思,pilot survey的解释,pilot survey的翻译
[新英汉石油技术词典] pilot survey
[地质学英汉词典] pilot survey
[英汉数学大词典] pilot survey
[生物学英汉词典] pilot survey
[石油英汉词典] pilot survey
[经贸英汉词典] pilot survey
[计算机英汉词典] pilot survey