vacuum jar的意思|示意
vacuum jar相关短语
1、 high-vacuum jar 高真空瓶
2、 high vacuum jar 高真空容器,高真空干燥器
3、 vacuum bell jar 真空钟罩,真空天平
4、 vacuum jar complete with cases 真空瓶
5、 vacuum alarm jar 真空钟罩
6、 vacuum m jar with tap 带塞真空瓶
vacuum jar相关例句
The chemist made a vacuum in the bell jar when he exhausted the air from it.
化学家抽走钟形瓶内的空气,使其成为真空。