| 摘要 |
<p>Three equal length sections (20;21;22) of cord on which lights (30) are mounted have three continuous length portions (A,B,C) having different lengths which are arranged to bridge three spans (S-1;S-2;S-3) of equal length. The spans are shorter than each of the three length portions (A,B,C). Each length section (20;21;22) has its respective three length portions (A,B,C) sequenced differently than the three length portions (A,B,C) of the other two length sections (20;21;22) so that the length portions (A,B,C) bridging each span (S-1;S-2;S-3) sag to three different levels. Attachments (40) are provided at the ends of the spans (S-1;S-2;S-3). <IMAGE></p> |
