单词pipestem
na.: 烟斗杆(管);形式上似烟斗杆(管)的东西网络: 烟斗管;烟斗柄;派普斯泰姆
烟斗柄
形式上似烟斗杆(管)的东西
Ways to Decrease Ammonia Content Measuring Error by Pipestem Method
降低烟斗管法测定氨含量误差的途径