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.

如果我们不让空气进入铃罩，铃罩中的电铃一定会因缺少介质而不响了。

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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.

如果我们不让空气进入铃罩，铃罩中的电铃一定会因缺少介质而不响了。

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A toughness cushion ring is arranged at the bottom of the threaded column on the jar lid.

在坛盖上螺纹拄的底部，有一韧性垫圈。

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The living room now has cedar walls from an old barn and is filled with works by local artists and knickknacks on the walls and shelves, from the Collings custom acoustic guitar Ms. Prettyman bought when she first started doing well to the glass jar Mr. Mraz used to hold the ring he proposed to her with.

WSJ: A Songwriter's Surf Hideaway