?闭链烃
... closed-cell foamed plastics 闭孔泡沫塑料 closed-chain hydrocarbon 闭链烃 closed-circuit refrigeration 闭合循环致冷 ...
?闭键烃
... closed water heater 密闭热水器 closed-chain hydrocarbon 闭键烃 closed-circuit air turbine 闭式循环空气透平 ...
英汉双解词典包含3185865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。