The noun 气魄 has the following meanings:
1) “spirit”.
Examples
这是真正的斗士的气魄
This is the spirit of a real fighter
zhè shì zhēnzhèng de dòushì de qìpò
这就是唐代的气魄
This is the spirit of the Tang Dynasty
hè jiùshì táng dài de qìpò
2) "boldness", “daring”.
Examples
你有那永不会消失的气魄
You have a courage that will never go away
nǐ yǒu nà yǒng bú huì xiāoshī de qìpò
首先你必须要有气魄
First of all, you have to be brave
shǒuxiān nǐ bìxū yào yǒu qìpò
3) "momentum".
In this meaning, it is most commonly used when talking about natural objects, structures, professional activity, atmosphere, production and sounds.
Examples
这样气魄雄伟的工程,在世界历史上是一个伟大的奇迹
Such a majestic project wasis a great miracle in world history
zhèyàng qìpò xióngwěi de gōngchéng, zài shìjiè lìshǐ shàng shì yí ge wěidà de qíjī
The noun 气魄 is also used in the following phrases:
气魄大 气魄宏伟 气魄宏大