Spruce has a long history in classical Musical Instruments: The violin, viola, cello, double bass as well as today's more expensive electric jazz guitars all have solid spruce tops.

在云杉有悠久的历史传统乐器：小提琴，中提琴，大提琴，低音提琴以及今天的更昂贵的电吉他，有深厚的爵士乐云杉上衣。

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This, plus a thinner, tapered, solid-spruce soundboard and other scaling differences, may give the Boston grands a longer sustain though less initial power.

这，再加上一个薄的，锥形的，坚实的云杉音板和其他尺度的差异，可能会给波士顿大奖赛一个再维持虽然初始功率。

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Solid (not laminated), premium grade, straight-grained spruce with a minimum of 8 annual growth rings per inch (3 per cm. ) for proven superior tone quality.

由经过严谨挑选的高品质云杉实木（非多层板）木制而成，木纹笔直，每英寸至少有八圈年轮，以提升音质。

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Unlike any other course in Britain, every fence at Aintree besides the water jump is covered with spruce, giving them the look of a solid hedgerow.

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