A dynameter is an instrument that measures the magnification of a telescope. It is usually a double-image micrometer used to measure the diameter of the image of the object glass. The magnifying power is found by comparing the actual diameter of the glass with the measured diameter of the image of the glass. thumb|350px|left|thumb|350px|center|
倍率計是一種測量望遠鏡放大倍率的儀器。它通常是一個雙圖像測微器（千分尺），用於測量物鏡成像圖像的直徑。通過將玻璃的實際直徑與玻璃圖像的測量直徑進行比較，可以找到放大倍數。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).