The lower strings contribute a splendid richness of sonority.

低音弦乐能产生一种华丽浓厚的音效。

《柯林斯英汉双解大词典》

With quiet piano-pianissimo chords in the lower strings, it's a very gentle introduction.

随着轻柔的钢琴声和低音域和弦，这是一篇温柔的序曲。

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With quiet piano-24 pianissimo chords in the lower strings, it's a very gentle introduction.

随着轻柔的钢琴声和低音域和弦，这是一篇温柔的序曲。

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The meticulous Swiss comes to the court armed with nine rackets strung at three different tensions ranging from 48 to 52 pounds in the vertical main strings (and 3.3 pounds lower for his cross strings) numbers he picks with his stringer the night before.

WSJ: Roger Federer: With Tennis Rackets, He Strings Them Loose

Jean-Christophe Verbourg, international tour director at Babolat, isn't so sure that poly strings need lower tensions.

WSJ: Roger Federer: With Tennis Rackets, He Strings Them Loose