primary ground line

网络释义

1.	主基线美英加陆军规格_馆档网 ... "主基准"," primary datum" "主基线"," primary ground line" "主要曲线"," principal curve" ... www.guandang.com

随便看

英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。