B/F tenor trombone for children, comprising a sound part and a slide, composed of an inner slide and an outer slide being movably disposed thereon, wherein the total length formed by sound part and slide has a tubing length Ls1+Ls2+Ls3+Lz1+Lz2+Lz3, and wherein in the 1st register, the slide has a tubing length Lz1+Lz2+Lz3 of less than 150 cm, and wherein the sound part has a tubing length Ls1+Ls2+Ls3 of more than 125 cm.
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机译：用于儿童的B / F中音长号，包括声音部分和滑动件，由内部滑动件和外部滑动件可移动地布置在其上，其中由声音部分和滑动件形成的总长度具有管长度L + L s2 + L s3 + L z1 + L z2 + L z3 < / Sub>，并且其中在第一个寄存器中，幻灯片的管长L z1 + L z2 + L z3 厘米，其中声音部分的管长L s1 + L s2 + L s3 大于125厘米。
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