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日期:2025-06-11
編號 品名 定價 特價 0240 四用多功能哨 #0240 Coghlans Four Function Whistle for Kids 190 171 0235 兒童用望遠鏡 #0235 Coghlans Binoculars for Kids 350 315 0238 兒童望遠鏡 #0238 Coghlans Binoculars for Kids 350 315...
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日期:2025-06-09
accurate and durable gyroscope ... *ratiometric, example given for Vdd=5.00Vdc **150mA at initializing, must raise to Vdd in less than 10mS Above are typical values....
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日期:2025-06-06
2011年10月17日 - 双筒望远镜无非是把两个镜筒组合在一起,便成了双筒望远镜。望远镜的最前端有一个镜片 ......
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日期:2025-06-11
To understand the working principle of binoculars, first you need to know a little about telescopes. In fact, this is exactly what binoculars are, two identical ......
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日期:2025-06-08
Structure and Optical Technologies Magnification principle. Binoculars feature a combination of objective lens and eyepiece lens that magnifies distant objects ......