背针胸刺水蚤 Centropages dorsispinatus
褐背针尾雨燕 Hirundapus giganteus ; Brown-backed Spinetail
白背针尾雨燕 Hirundapus cochinchinensis
平背针 Flat-back needle
纯背针尾雀 Leptasthenura aegithaloides
锈背针尾雀 Cranioleuca vulpina
黑背圆颌针鱼 Tylosurus acus melanotus ; blackfin long tom
针织背心 knitted vest ; Knit Vest ; vest
露背针织连衣裙 backless knit dress
1型背筋机适用于棉布、汗布、羊绒、羊呢、皮质等手套装饰缝，有二针和四针。
Model GG0807-1 Dorsal rib machine, Adaptable to decorative sewing glove materials including cotton cloth, sweat cloth, cashmere, woolen fabric, leather etc, with 2-needle or 4-needle option.
中缝背核在针剌镇痛过程中起重要作用。
Nucleus raphe dorsalis (RD) plays an important role in acupuncture analgesia.
传统的高速经编机主要采用花盘凸轮式横移机构，推动梳栉完成针前、针背横移。
Traditional high speed warp knitting machine mainly uses cam as pattern drive mechanism, making guide bars accomplish overlap and under lap.
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