单词：liquid helium vessel
[低温] 液氦容器
单词：liquid helium vessel 相关文章
Ed came home from his errands and put the groceries into the cupboard and the refrigerator. He grabbed a flathead screwdriver and a pair of pliers from his toolbox. In the kitchen, he got down on his hands and knees and turned on the flashlight. Afte
发表于:2019-01-27 / 阅读(59) / 评论(0)
365个英语简短小故事
365个英语简短小故事