单词：hermetic closure
hermetic closure的用法和样例：
例句
- A hermetic seal is used on this glass bottle.这个玻璃瓶用的是一种密封盖。
- Leads are connected to the outside ends of the reeds and the entire assembly is sealed in a hermetic glass tube.导线被连接至簧片的外侧一端，并且整个成套件是被密封在一个密闭的玻璃管内。
- Leads are connected to the outside ends of the reeds and the entire assembly is sealed in a hermetic glass tube.导线被连接至簧片的外侧一端，并且整个成套件是被密封在一个密闭的玻璃管内。
单词：hermetic closure 相关文章
[00:17.23]Figure On The Proch [00:26.43]门廊鬼影 [00:35.14]I lay back down and tried to go back to sleep. [00:39.57]After I had lain there for about 5 minutes, [00:43.12]I started to hear a tapping sound. [00:45.77]I listened for a minute, [00:48.07]
英语灵异故事
This is the VOA Special English Health Report. A.D.H.D. is attention deficit hyperactivity disorder. Government estimates say three to seven percent of school-age children in the United States have it. Adults can also have it. People with A.D.H.D. ha
2010年VOA慢速英语(五)月
Memo From A Child To Parents 1. Don't spoil me. I know quite well that I ought not to have all I ask for. I'm only testing you. 2. Don't be afraid to be firm with me. I prefer it, it makes me feel secure. 3. Don't let me form bad habits. I have to re
每天一点英文
DAVID GREENE, HOST: Today in Your Health, we're taking a close look at chemotherapy. It's been a mainstay of cancer treatment for decades, but that method is slowly being edged aside in medical research as new treatments, like immunotherapy, grab the
2017年NPR美国国家公共电台3月
英语作文 The biggest difference between animals and human is that human can think. So we have emotions. Love,hatred and grief are emotions.I was an emotional boy since I was young.I love to watch the dark sky,the moon and the stars.They always make
英语作文
By Benjamin Sand Islamabad 16 March 2007 Tension is mounting throughout much of Pakistan as protests continue over the controversial suspension of the country's top judge. From Islamabad, VOA correspondent Benjamin Sand reports the chief justice vows
2007年VOA标准英语（三月）