“trap rock”概念、定义、翻译-科学时代

单词	trap rock
释义	水利水电词汇手册 trap rock 暗色岩
随便看	military agreement military aid military aircraft military airlift force military airplane military airport military alliance military alliance military application of nuclear explosives military appointment military area military armistice military assistance military assistance military association military association military attacheé military attacheé's office military attaché military authority military aviation military balance military band military base military base at sea

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

trap rock