eyepiece cross-hair 中文意思是什麼
eyepiece cross-hair
解釋
目鏡十字線-
Other accessories include tripod, shutter release cable, adaptor ring, equatorial mounting, guiding telescope and cross - hair eyepiece
常用的設備還有三腳架快門繩攝影機接合環赤道儀式腳座追蹤用望遠鏡及十字絲目鏡等。
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