钮扣夹压力调节螺母 pressure regulating thumb screw: 压脚调节翼形螺钉; 压力调节翼形螺钉pressure screw check nut: 压力螺钉防松螺母regulating nut: 调节螺帽; 调节螺母; 调整螺母clamp nut: 花螺母; 夹固螺母; 夹紧螺母; 紧固螺母nut clamp: 螺母夹下载手机词典可随时随地查词查翻译