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altitude clamp /ˈlɛvəl ˈθɹiː sɪlˈɛkt/ n

中文：垂直锁紧夹

中文 · 垂直锁紧夹Español · palanca de bloqueo de la alturaFrançais · vis de blocage (latitude)
Meaning：Clamp serving to lock the telescope along its vertical axis. celestial coordinate system
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Reflecting telescope

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