preset fine tuning预: in advance; beforehand微调: trim; fine tuning; vernier a ...节: joint; knob; node预微调旋钮: presetting fine tuning调节钮: adjusting knob下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:预微调节钮，即可在微信中查询翻译
