This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle.

通过密封阀与更大的，更强的位于下面的腔室——心室——相连。

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The upper chamber on each side is called the atrium. This is connected via a sealing valve to the larger, more powerful lower chamber, or ventricle.

两侧的上腔室被称为心房，并通过一个密封瓣膜连接到更大更有力的下腔室（或称为心室）。

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An unlocking door is arranged on the side wall of the upper chamber and the lower chamber is fully filled with heat absorbing and preservation materials.

上腔室的侧壁上设置有开启门；下腔室内充填满吸热保温材料。

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An unlocking door is arranged on the side wall of the upper chamber and the lower chamber is fully filled with heat absorbing and preservation materials.

上腔室的侧壁上设置有开启门；下腔室内充填满吸热保温材料。

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