垂直微调钮
/ˈaltɪtjˌuːd ˈklamp/
n
English: altitude fine adjustment · 垂直微调钮
English · altitude fine adjustmentEspañol · ajuste fino de la alturaFrançais · réglage micrométrique (latitude)
释义：Fine-tuning device serving to position the telescope vertically. celestial coordinate system