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Such crescendos are often marked by the composer , but sometimes they are not .

象这样的声音渐强的符号经常由作曲家标示出来，但有时他们也不标出。

The researchers found that selections with crescendos , especially those with a series of them ( think : queen 's bohemian rhapsody ) , led to proportional constriction of blood vessels and increases in blood pressure , heart rate and respiration .

研究者发现音乐中的渐强乐段，特别是一系列渐强乐段（想想看比如：皇后乐队波希米亚狂想曲），会导致血管相应地收缩，血压升高、心律和呼吸加快。

Understanding the mechanisms of how swelling crescendos and deflating decrescendos affect our physiology , he suggests , could lead to potential new therapies for stroke and other conditions .

他指出了解声音渐渐升高和缓缓回落是怎样影响我们的生理的原理，可以开发出针对中风和其他病况的新治疗法。

The songs here are gorgeous as they slowly build in intensity , as the string arrangements swirl , the guitars jangle and the vocals steeply climb atop the thundering crescendos .

他们的音乐是灿烂的，他们缓慢营造了激烈的情绪，用漩涡似的弦乐安排，刺耳的吉他和向上爬升的声乐。