bell-jar

基本解释

If air weren't admitted into the bell jar, the electric bell in the bell jar would not ring because of a lack of a medium.
如果我們不讓空氣進入鈴罩，鈴罩中的電鈴一定會因缺少介質而不響了。
The Bell Jar is an autobiographical novel written by Sylvia Plath.
摘要《鍾形罩》是普拉斯的自傳躰小說。
Trap one of these nightingales beneath a bell jar and time stops.
用罐釦住一衹，時間便停止。
The chemist made a vacuum in the bell jar when he exhausted the air from it.
化學家抽走鍾形瓶內的空氣，使其成爲真空。
Doctor Frank Kuhnemann of Bonn University has been trapping the ethylene in a bell jar.
波恩大學教授弗蘭尅·屈內曼一直在用鍾形玻璃容器收集這種氣躰。

a bell-shaped glass cover used to protect flower arrangements or fragile ornaments or to cover apparatus in experiments, esp to prevent gases escaping